20 results on '"APPLE blue mold"'
Search Results
2. Regulation of sucrose metabolism, sugar transport and pentose phosphate pathway by PacC in apple fruit colonized by Penicillium expansum.
- Author
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Zhu, Yatong, Zong, Yuanyuan, Wang, Xuexue, Gong, Di, Zhang, Xuemei, Zhang, Feng, Prusky, Dov, and Bi, Yang
- Subjects
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NICOTINAMIDE adenine dinucleotide phosphate , *PENTOSE phosphate pathway , *TRANSCRIPTION factors , *METABOLIC regulation , *ENZYME metabolism , *APPLE blue mold - Abstract
A critical transcription factor, PacC, modulates the expression of fungal pH signaling. Although PacC-mediated environmental pH has been reported to regulate the growth and pathogenicity of postharvest pathogens, the involvement of PacC in sucrose metabolism, sugar transport, and the pentose phosphate pathway (PPP) in different zones of decayed fruit remains unclear. Our work showed that the inoculation with a PePacC deletion strain of Penicillium expansum (Δ PePacC) accelerated sucrose catabolism and glucose and fructose accumulation in different zones of apple fruit. This was attributed to an increase in sucrose metabolism enzyme activities and up-regulation of the sugar transporter protein-related gene expression. Moreover, Δ PePacC inoculation increased the PPP-related enzyme activities and the levels of nicotinamide adenine dinucleotide phosphate (NADPH) and NADP+. In conclusion, PacC modulates sucrose metabolism, sugar transport, and the PPP in apple fruit by mediating dynamic changes in environmental pH, thereby enhancing fruit disease resistance. • PePacC modulated the sucrose catabolism in fruit colonized by P. expansum. • PePacC regulated the sugar transport in fruit colonized by P. expansum. • PePacC mediated PPP-induced resistance response in fruit colonized by P. expansum. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
3. Tea tree essential oil and its impact on blue mold, volatile compounds, and postharvest quality of 'Fuji' apples: A study of laboratory-extracted and commercial essential oils.
- Author
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da Silva, Janaiana Catarina, Steffens, Cristiano André, Alves, Juliana Amaral Vignali, Moreira, Marcelo Alves, do Amarante, Cassandro Vidal Talamini, Casa, Ricardo Trezzi, Espíndola, Bruno Pansera, and Bortoluzzi, Airton Luiz
- Subjects
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TEA tree oil , *ESSENTIAL oils , *COLD storage , *ETHYLENE , *VAPORIZATION , *APPLE blue mold - Abstract
This study evaluated the effects of tea tree essential oil (TTO) on blue mold severity, volatile compound profiles, and postharvest quality of 'Fuji' apples during cold storage. Two experiments were conducted using laboratory-extracted TTO from Brazil and commercial TTO from Australia, applied by vaporization at various concentrations. Both types of TTO affected major volatile compounds, including terpinen-4-ol, γ-terpinene, and α-terpinene. The laboratory-extracted TTO had higher of 1,8-cineole, while commercial TTO had more p-cymene. TTO reduced blue mold severity up to 115 μL L−1 (laboratory) and 99 μL L−1 (commercial). Ethylene production decreased with laboratory-extracted TTO up to 64 μL L−1, while commercial TTO decreased ethylene production. Laboratory TTO increased the respiratory up to 41 μL L−1 before declining, whereas commercial TTO continuously decreased the respiratory. Higher concentrations of laboratory TTO decreased flesh firmness and lightness.TTO types altered the apples' volatile profiles, reducing 'Fuji' apple aromas. • Postharvest application of Melaleuca a lternifolia essential oil (TTO) reduces blue mold. • The application of TTO reduces the production of ethylene during the storage of apples. • Application of TTO causes unwanted changes in the quality and aromas of stored apples. [ABSTRACT FROM AUTHOR]
- Published
- 2025
- Full Text
- View/download PDF
4. Sanxiapeptin is an ideal preservative with a dual effect of controlling green mold and inducing systemic defense in postharvest citrus.
- Author
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Li, Jing, Bai, Xiaoxuan, Zhu, Gaojie, Liu, Siyu, Liu, Chengxiong, Wu, Muci, Zou, Kun, Li, Ao, and Liu, Shiping
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APPLE blue mold , *MOLD control , *CITRUS fruits , *ANTIMICROBIAL peptides , *CITRUS , *PENICILLIUM digitatum , *ORANGES - Abstract
Green mold is a common postharvest disease infected by Penicillium digitatum that causes citrus fruit decay, and severely affects fruit storage quality. This work aimed to investigate the antifungal activity of Sanxiapeptin against P. digitatum , and elucidate the possible mechanisms involved. Sanxiapeptin was capable of inhibiting spore germination, germ tube length and mycelial growth. The SYTOX green staining assay revealed that Sanxiapeptin targeted the fungal membrane, and changed the membrane permeability, leading to the leakage of cell constituents. Meanwhile, Sanxiapeptin could influence the cell wall permeability and integrity by increasing the activities of chitinase and glucanase, resulting in abnormal chitin consumption and the decrease of glucan. Intriguingly, Sanxiapeptin could effectively control postharvest decay in citrus fruits, and activate the host resistance responses by regulating the phenylpropanoid pathway. In conclusion, Sanxiapeptin exhibits multiphasic antifungal mechanisms of action to control green mold in citrus fruits, shows great potential as novel food preservatives. [Display omitted] • Antimicrobial peptide Sanxiapeptin inhibited the growth of P. digitatum in vitro. • Sanxiapeptin treatment disrupted the cell membrane and wall integrity of P. digitatum. • Sanxiapeptin reduced the green mold incidence of citrus fruit in vivo. • Sanxiapeptin could induce resistance against green mold in citrus fruit. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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5. Difference of resistance to postharvest blue mold between Hongyang and Qihong kiwifruits.
- Author
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Luo, Anwei, Bai, Junqing, Li, Rui, Liu, Zhande, Fang, Yimeng, Wang, Dan, Huang, Tianzi, Zhang, Lu, Liang, Jin, and Kou, Liping
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KIWIFRUIT , *FRUIT diseases & pests , *DISEASE resistance of plants , *APPLE blue mold , *PERICARP - Abstract
Highlights • Hongyang kiwifruit is more resistant to blue mold than Qihong kiwifruit. • Hongyang kiwifruit showed a higher biochemical resistance than Qihong kiwifruit. • The outer epidermal structure of Hongyang kiwifruit has disease resistance characteristics. Abstract This study aimed to reveal the physiological mechanism of resistance to postharvest blue mold of kiwifruit. Hongyang and Qihong kiwifruits were inoculated with Penicillium expansum (P. expansum) and stored at low temperature (0 ± 1 °C). The disease incidence and lesion diameter, activities of defense-related enzymes, and contents of defense-related substance of Hongyang and Qihong kiwifruits were also compared, combined with the observation of fruit pericarp structure by scanning electron microscopy. Results showed that the disease resistance of Hongyang was stronger than that of Qihong with late onset, low incidence, and small lesion diameter. And Hongyang kiwifruit showed a high biochemical resistance after inoculation with P. expansum. The epidermis structure of Hongyang kiwifruit had typical disease resistance characteristics with a dense epidermis structure, orderly cell arrangement, and less obvious microcracks. The strong biochemical resistance, dense, and complete epidermis structure of Hongyang fundamentally guarantee its strong resistance to diseases. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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6. Double-bottom antimicrobial packaging for apple shelf-life extension.
- Author
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da Rocha Neto, Argus Cezar, Beaudry, Randolph, Maraschin, Marcelo, Di Piero, Robson Marcelo, and Almenar, Eva
- Subjects
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ANTI-infective agents , *SHELF-life dating of food , *APPLE blue mold , *WEIGHT loss , *CYCLODEXTRINS , *ILLICIUM verum - Abstract
Highlights • Created a double-bottom antimicrobial package that extends apple shelf life. • The novel package slows Penicillium expansum growth. • The novel package reduces apple ethylene production, respiration rate and firmness loss. • Double-bottom antimicrobial packages with ICsa extend apple shelf life better than with ICp. • A new strategy to reduce postharvest losses in countries lacking cold storage. Abstract A package was created that extends apple shelf-life by slowing Penicillium expansum growth. The package consisted of a peelable lid and a tray with a double bottom with inclusion complexes (ICs) of ß-cyclodextrin (ß-CD) containing the essential oils of palmarosa (ICp) or of star anise (ICsa). Oil amounts required for antimicrobial activity were obtained from in vitro assays. After 12 days at 23 °C, P. expansum -inoculated apples in both of the double-bottom antimicrobial packages (DBAP) had 1/3 less fungal growth, less than 50% weight loss and ethylene and CO 2 production, and less than 25% firmness loss, TA and SSC increase, and pH decrease compared to controls. The DBAP with ICsa performed better than with ICp in reducing ethylene production, respiration rate, firmness loss, TA increase, and pH decrease. This demonstrates DBAP containing ICp or ICsa can maximize the shelf-life of apples injured by P. expansum , validating a novel type of antimicrobial packaging. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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7. Chlorogenic acid induces resistance against Penicillium expansum in peach fruit by activating the salicylic acid signaling pathway.
- Author
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Jiao, Wenxiao, Li, Xiangxin, Wang, Xiaomei, Cao, Jiankang, and Jiang, Weibo
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CHLOROGENIC acid , *APPLE blue mold , *FRUIT disease & pest resistance , *SALICYLIC acid , *CELLULAR signal transduction - Abstract
The objective of this study was to investigate the effect of chlorogenic acid (CGA) treatment on induction of resistance against pathogens in peach fruit. Treatment with CGA at 25–150 mg L −1 was effective at reducing lesion diameter and decay index of peach fruit during storage at 25 °C after Penicillium expansum infection. CGA treatment had also significant beneficial effects on fruit quality parameters including firmness, soluble solids contents, pH value, and titratable acidity. Activities of main defense-related enzymes and expression of key genes involved in the salicylic acid (SA) signaling pathway, such as PAL , ICS , WRKY , NPR1 , PR1 , CHI , GLU , PR5 , and POD , were enhanced by CGA treatment. These findings suggest that CGA treatment is a promising approach to controlling postharvest blue mold rot in peach fruit, and activation of the SA signaling pathway may play a potential role in mechanisms involving CGA-induced plant disease resistance. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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8. Yeast cell wall induces disease resistance against Penicillium expansum in pear fruit and the possible mechanisms involved.
- Author
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Sun, Cui, Lin, Ming, Fu, Da, Yang, Jiali, Huang, Yining, Zheng, Xiaodong, and Yu, Ting
- Subjects
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EFFECT of drugs on fungal cell walls , *APPLE blue mold , *PEAR fruit-borer , *POSTHARVEST diseases , *FUNGAL gene expression , *THERAPEUTICS - Abstract
The results from this study showed that cell wall prepared from Rhodosporidium paludigenum induced strong disease resistance against blue mold rot caused by Penicillium expansum in pear fruit. Yeast cell wall reduced germination of P. expansum in vitro and in fruit wounds after 24 h of treatment. Moreover, the cell wall treatment significantly enhanced the activities of defense-related enzymes (β-1,3-glucanase and chitinase) and the genes expression of PR proteins ( PR1-like , endoGLU9, endoCHI-like and PR4 ), which may be an important mechanism by which cell wall reduces the fungal disease of pear fruit caused by P. expansum . These findings suggest that the mechanism by which R. paludigenum induced fruit resistance was linked to the function of its cell wall and application of cell wall might be a useful strategy for the control of postharvest disease in pear fruit. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
9. Preparation technology and preservation mechanism of γ-CD-MOFs biaological packaging film loaded with curcumin.
- Author
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Kang, Lixin, Liang, Qiufang, Abdul, Qayum, Rashid, Arif, Ren, Xiaofeng, and Ma, Haile
- Subjects
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PACKAGING film , *CURCUMIN , *PRESERVATION of materials , *FOOD spoilage , *ANTIBACTERIAL agents , *APPLE blue mold - Abstract
[Display omitted] • Curcumin was encapsulated into the synthesized microporous γ-CD-MOFs (Cur-CD-MOFs). • The mechanism of curcumin encapsulation by γ-CD-MOFs was elucidated. • Cur-CD-MOFs is a nontoxic antibacterial material. • Cur-CD-MOFs enhanced the mechanical barrier and properties of Pul/Tre film. • Cur-CD-MOFs packaging has a high preserving effectiveness to postharvest products. To prevent food spoilage caused by microbial infection, the development of an environmentally friendly antimicrobial preservation material is crucial. Here, the microporous γ-CD-MOFs was utilized to encapsulate the hydrophobic active substance curcumin, resulting in the preparation of a non-toxic antimicrobial material (Cur-CD-MOFs). The results revealed that curcumin encapsulation in Cur-CD-MOFs occurred primarily in the carbonyl group, benzene ring, and enolic side ring of curcumin. The Cur-CD-MOFs had a 100% bactericidal effect on Escherichia coli and Staphylococcus aureus at 4 h and 8 h, and a strong inhibitory effect on aerial mycelium of Penicillium expansum and Botrytis cinerea. Furthermore, the incorporation of Cur-CD-MOFs improved the Pul/Tre film barrier and mechanical properties. The effectiveness of Cur-CD-MOFs-Pul/Tre in retaining fruit freshness was validated using Centennial Seedless grapes. This study confirmed that Cur-CD-MOFs is a promising antibacterial material, and Cur-CD-MOFs-Pul/Tre will be a potent candidate for food preservation. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
10. Overexpression of the SDR gene improves the ability of Meyerozyma guilliermondii to degrade patulin in pears and juices.
- Author
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Zhang, Yu, Dhanasekaran, Solairaj, Ngea, Guillaume Legrand Ngolong, Yang, Qiya, and Zhang, Hongyin
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APPLE blue mold , *GENETIC overexpression , *PATULIN , *ENDOENZYMES , *PEACH , *MOLD control , *FRUIT juices , *BIOMASS - Abstract
• A short-chain dehydrogenase/reductase MgSDR was overexpressed in M. guilliermondii. • MgSDR -overexpressed M. guilliermondii degraded more patulin in pears and juices. • MgSDR -overexpressed M. guilliermondii controlled the P. expansum biomass in pears. The intracellular enzymes of antagonistic yeast are effective in controlling patulin (PAT) contamination. However, countless enzymes that have been revealed remain functionally uncharacterized. The study built on previous transcriptomic data obtained by our research group to amplify and express a gene encoding a short-chain dehydrogenase/reductase (SDR) in Meyerozyma guilliermondii. Overexpression of SDR increased the tolerance of M. guilliermondii to PAT and the ability to degrade PAT of the intracellular enzymes. Furthermore, MgSDR- overexpressed M. guilliermondii showed higher PAT degradation in juices (apple and peach) and controlled the blue mold of pears at 20 °C and 4 °C while significantly reduced the content of PAT and the biomass of Penicillium expansum in decayed tissues than wild-type M. guilliermondii. This study provides theoretical references for the subsequent heterologous expression, formulation, and application of the SDR protein from M. guilliermondii and contributes to elucidating the PAT degradation mechanism of antagonistic yeasts. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
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11. Evaluation of Penicillium expansum for growth, patulin accumulation, nonvolatile compounds and volatile profile in kiwi juices of different cultivars.
- Author
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Wang, Yuan, Shan, Tingting, Yuan, Yahong, Zhang, Zhiwei, Guo, Chunfeng, and Yue, Tianli
- Subjects
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KIWIFRUIT , *FRUIT juice analysis , *APPLE blue mold , *FOOD microbiology , *BIOACCUMULATION , *FOOD consumption - Abstract
Patulin (PAT) contamination and changes of nonvolatile and volatile compounds caused by Penicillium expansum in fresh juices of 8 kiwi cultivars were investigated. Growth and PAT production of P. expansum were greater at 25 °C than at 4 °C. P. expansum grew in kiwi juices under pH ranging from 2.75 to 3.27 and produced 45.10–268.88 μg/mL of PAT at 25 °C. Decreases occurred in malic acid and soluble protein; while consumption and production simultaneously happened for reducing sugar, total soluble solid, titratable acid, citric acid, ascorbic acid and total phenolics. A large number of volatile organic compounds (VOCs) were produced during infection and each cultivar presented a distinct profile. Most of the alcohols, acids, ketones and phenols increased while aldehydes decreased. VOCs that were specific to infected kiwi juices are potential biomarkers for GC–MS analysis of kiwifruit infected by P. expansum . [ABSTRACT FROM AUTHOR]
- Published
- 2017
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12. BTH-induced joint regulation of wound healing at the wounds of apple fruit by JA and its downstream transcription factors.
- Author
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Deng, Huiwen, Ma, Li, Gong, Di, Xue, Sulin, Ackah, Sabina, Prusky, Dov, and Bi, Yang
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APPLE blue mold , *WOUND healing , *TRANSCRIPTION factors , *FRUIT , *JASMONIC acid , *PHENYLPROPANOIDS - Abstract
• Benzo-(1, 2, 3)-thiadiazole-7-carbothioic acid (BTH) promoted jasmonic acid (JA) synthesis. • BTH up-regulated the downstream transcription factors of JA at wounds. • BTH activated the phenylpropanoid metabolism at the wounds. • BTH promoted wound healing of apple fruit by reducing weight loss and lesion diameter. Jasmonic acids (JAs) are important injury signaling molecules, which participate in the process of wound healing in plants. However, how JA and its downstream transcription factors involve in wound healing in apple fruit mediated by BTH has not been reported yet. In the present study, BTH treatment up-regulated gene expression of MdLOX3.1 , MdAOS1 , MdAOC , and MdOPR3 , promoting JA synthesis at fruit wounds. Moreover, BTH up-regulated the gene expression of MdMYC2, MdGAIPB, and MdMYB108 transcription factors and increased MdPAL1 , Md4CL2 , MdCOMT1 , and MdCAD6 expression. In addition, BTH facilitated the synthesis of phenylpropanoid metabolism products and accelerated suberin polyphenolics deposition at the wounds, which effectively reduced fruit weight loss and lesion diameter of apple fruit inoculated with Penicillium expansum during healing. It is suggested that BTH induced wound healing in apple fruit by the stimulating JA and its downstream transcription factors, and phenylpropanoid metabolism. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
13. Enhancement of biocontrol efficacy of Kluyveromyces marxianus induced by N-acetylglucosamine against Penicillium expansum.
- Author
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Wu, Yalan, Gao, Yufang, Zheng, Xiaodong, Yu, Ting, and Yan, Fujie
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APPLE blue mold , *KLUYVEROMYCES marxianus , *N-acetylglucosamine , *REACTIVE oxygen species , *SUPEROXIDE dismutase , *PENICILLIUM - Abstract
• GlcNAc enhances biocontrol efficacy of K. marxianus. • GlcNAc enhances K. marxianus stress resistance and inhibition of P. expansum. • Defense-related enzyme activities in K. marxianus improve by GlcNAc. • GlcNAc stimulates a positive response in the oxidative stress system of K. marxianus. • GlcNAc up-regulates proliferation-associated genes by transcriptomic analysis. This research aimed to investigate the effect of N -acetylglucosamine (GlcNAc) on the biocontrol activity of Kluyveromyces marxianus and involved possible mechanisms. The results indicated that 0.5% GlcNAc significantly improved the antagonistic efficacy of K. marxianus against Penicillium expansum. GlcNAc supplementation led to increases of biocontrol-related enzymes and stress-resistant substances in K. marxianus including chitinase, β-1,3-glucanase, trehalose and proline, being beneficial for yeasts vigor maintenance under adverse circumstances. The antioxidative-related enzyme activities in K. marxianus , such as superoxide dismutase (SOD), catalase (CAT) and others, were increased by GlcNAc along with more quickly excess reactive oxygen species (ROS) scavenging. GlcNAc resulted in an enhancement of proliferative capacity in K. marxianus according to the transcriptomic analysis. Consequently, GlcNAc contributed to improvements of K. marxianus in the environmental adaptability and stress resistance. Our study demonstrated that both GlcNAc and K. marxianus could be regarded as potential candidates for postharvest technology application. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
14. Use of oil-in-water emulsions to control fungal deterioration of strawberry jams.
- Author
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Ribes, Susana, Fuentes, Ana, Talens, Pau, and Barat, José M.
- Subjects
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JAM (Preserves) , *ANTIFUNGAL agents , *CLOVE (Spice) , *ESSENTIAL oils , *FOOD emulsions , *ASPERGILLUS , *APPLE blue mold - Abstract
This work aimed to control the fungal deterioration of strawberry jams. The antifungal activity of the clove, cinnamon leaf, lemon and mandarin essential oils and their effectiveness in oil-in-water emulsions were evaluated. According to the results obtained, only clove and cinnamon leaf oils were selected to prepare emulsions. All the tested emulsions were stable, independently the amount of polymer and essential oil used. Essential oil loss was affected by the amount of polymer employed to prepare the emulsions. The oil-in-water emulsions with 5.0 mg/g xanthan gum, and with 0.55 mg/g clove or 0.65 mg/g cinnamon leaf essential oil, were used for the in vivo tests. The jams prepared with the oil-in-water emulsions showed a lower fungal decay compared with jams without emulsion. The present work demonstrated that emulsions can be employed to prevent strawberry jam mould spoilage. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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15. Innovative natural antimicrobial natamycin incorporated titanium dioxide (nano-TiO2)/ poly (butylene adipate-co-terephthalate) (PBAT) /poly (lactic acid) (PLA) biodegradable active film (NTP@PLA) and application in grape preservation.
- Author
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Zheng, Yanli, Jia, Xiaoyu, Zhao, Zhiyong, Ran, Yalin, Du, Meijun, Ji, Haiyu, Pan, Yanfang, Li, Ziqin, Ma, Xiaowei, Liu, Yue, Duan, Lihua, and Li, Xihong
- Subjects
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POLYLACTIC acid , *TITANIUM dioxide , *LACTIC acid , *GRAPES , *BUTENE , *APPLE blue mold - Abstract
• Biodegradable NTP@PLA film was fabricated by melt processing. • NTP@PLA film exhibited the long-lasting inhibition on Penicillium expansum. • NTP@PLA film displayed biodegradability in soil. • NTP@PLA film displayed a strong control effect on the decay of postharvest grape. Poly (butylene adipate- co -terephthalate) (PBAT)/polylactic acid (PLA) blended with compatibilizers (polycaprolactone, PCL; poly (ethylene glycol), PEG; titanium dioxide, nano-TiO 2) (TP@PLA composites) were developed by melt processing. Natamycin incorporated into TP@PLA blend composites formed NTP@PLA films, which exhibited high tensile strength (24.1–43.5 MPa) and elongation at break (85.8–258.2 %), and exhibited good oxygen permeability, water vapor permeability, surface hydrophobicity and biodegradability. The in vitro results revealed that inhibition of Penicillium expansum cell growth of the NTP@PLA films with addition of 1.0 wt% natamycin reached 95.72 %. The NTP@PLA film with natamycin effectively reduced incidence of decay (1.52 %) on grapes, maintained their quality, and inhibited the growth of pathogenic fungi to up to 0.42 log cfu·g−1. This study generates new insights into the preservation properties of antimicrobial NTP@PLA film, which endow it with great application potential as a novel and eco-friendly packaging material for the food industry. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
16. Pre-harvest application of oxalic acid increases quality and resistance to Penicillium expansum in kiwifruit during postharvest storage.
- Author
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Zhu, Yuyan, Yu, Jie, Brecht, Jeffrey K., Jiang, Tianjia, and Zheng, Xiaolin
- Subjects
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APPLE blue mold , *KIWIFRUIT , *OXALIC acid , *VITAMIN C , *ENZYMES in food , *FOOD storage - Abstract
Kiwifruit ( Actinidia deliciosa cv. Bruno) fruits were sprayed with 5 mM oxalic acid (OA) at 130, 137, and 144 days after full blossom, and then harvested at commercial maturity [soluble solid content (SSC) around 10.0%] and stored at room temperature (20 ± 1 °C). Pre-harvest application of OA led to fruit with higher ascorbic acid content at harvest, slowed the decreases in fruit firmness and ascorbic acid content and increase in SSC during storage, and also decreased the natural disease incidence, lesion diameter, and patulin accumulation in fruit inoculated with Penicillium expansum , indicating that the OA treatment increased quality and induced disease resistance in kiwifruit. It was suggested that the increase in activities of defense-related enzymes and in levels of substances related to disease resistance might collectively contribute to resistance in kiwifruit against fungi such as P. expansum in storage. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
17. γ-Aminobutyric acid induces resistance against Penicillium expansum by priming of defence responses in pear fruit.
- Author
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Yu, Chen, Zeng, Lizhen, Sheng, Kuang, Chen, Fangxia, Zhou, Tao, Zheng, Xiaodong, and Yu, Ting
- Subjects
- *
AMINOBUTYRIC acid , *APPLE blue mold , *PEAR diseases & pests , *PLANT defenses , *GABA , *PATHOGENIC microorganisms , *IN vitro studies - Abstract
Highlights: [•] GABA efficiently inhibited blue mould rot in pear fruit. [•] GABA failed to suppress spore germination and growth of P. expansum in vitro. [•] GABA reduced germination of P. expansum in fruit wounds after 24h of treatment. [•] GABA activated defence-related genes and enzymes upon challenge with pathogen. [•] GABA had no adverse influence on the edible quality of pear. [Copyright &y& Elsevier]
- Published
- 2014
- Full Text
- View/download PDF
18. The effects of the combination of Pichia membranefaciens and BTH on controlling of blue mould decay caused by Penicillium expansum in peach fruit
- Author
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Cao, Shifeng, Yang, Zhenfeng, Hu, Zhichao, and Zheng, Yonghua
- Subjects
- *
APPLE blue mold , *BIOLOGICAL control of agricultural pests , *PICHIA , *PEACH , *THIADIAZOLES , *SUPEROXIDE dismutase - Abstract
Abstract: The feasibility of 0.2gl−1 benzo-thiadiazole-7-carbothioic acid S-methyl ester (BTH) to improve the efficacy of Pichia membranefaciens in controlling postharvest blue mould decay in peach fruit was investigated. Our results showed that biocontrol activity of P. membranefaciens against blue mould caused by Penicillium expansum in peach fruit could be enhanced by addition of 0.2gl−1 BTH. The combination of P. membranefaciens and BTH resulted in a more effective control of blue mould than individual treatment of P. membranefaciens or BTH alone. The combined treatment had a synergistic effect on the induction of superoxide dismutase, catalase, ascorbate peroxidase, chitinase and β-1,3-glucanase activities, which induced stronger disease resistance in fruit than BTH or yeast alone, and resulted in a lower lesion diameter and disease incidence of blue mould decay in peaches. Furthermore, the combined treatment did not impair the quality parameters including fruit firmness and contents of total soluble solids, titratable acidity and vitamin C of peach fruit after 6days of storage at 20°C. These results suggested that the use of BTH may be an effective method to improve the biological activity of P. membranefaciens. [Copyright &y& Elsevier]
- Published
- 2011
- Full Text
- View/download PDF
19. Luteolin-induced activation of the phenylpropanoid metabolic pathway contributes to quality maintenance and disease resistance of sweet cherry.
- Author
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Liu, Xiaoyun, Cui, Xiaomin, Ji, Dongchao, Zhang, Zhanquan, Li, Boqiang, Xu, Yong, Chen, Tong, and Tian, Shiping
- Subjects
- *
BIOTRANSFORMATION (Metabolism) , *DISEASE resistance of plants , *APPLE blue mold , *SWEET cherry , *LUTEOLIN , *FRUIT quality - Abstract
• Luteolin alleviated quality deterioration and reduced disease incidence rate of sweet cherry. • Luteolin activated phenylpropanoid metabolic pathway and ameliorated antioxidant capacity. • Luteolin suppressed mycelial growth and pathogenicity of Botrytis cinerea and Penicillium expansum. • Luteolin decreased patulin production of P. expansum. Redox imbalance and fungal infection are major causes for quality deterioration and postharvest decay of fruit. Therefore, it is crucial to activate intrinsic antioxidative capacity and disease responses for fruit quality maintenance. Although plant-derived flavonoids have been reported for health-promoting benefits, their roles in the maintenance of fruit quality remains largely unexplored. Here, we exogenously applied luteolin, a flavonoid substance, and further examined its efficacy in maintaining fruit quality and inhibiting fungal diseases in sweet cherry. The results showed that 100 or 200 mg/L luteolin maintained better organoleptic quality and decreased disease incidence during storage. Biochemical assays revealed that luteolin activated the phenylpropanoid metabolic pathway and improved antioxidative capacity, thereby elevating total anthocyanin and flavonoid contents. Notably, luteolin inhibited mycelial growth of fungal pathogens and reduced patulin yield by Penicillium expansum. Collectively, these results suggest that luteolin is a promising alternative for maintaining better fruit quality and ameliorating disease resistance. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
20. Hypha-templated synthesis of carbon/ZnO microfiber for dopamine sensing in pork.
- Author
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Zhihua, Li, Xue, Zhang, Xiaowei, Huang, Xiaobo, Zou, Jiyong, Shi, Yiwei, Xu, Xuetao, Hu, Yue, Sun, and Xiaodong, Zhai
- Subjects
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MICROFIBERS , *APPLE blue mold , *PORK , *RAMAN spectroscopy , *ELECTROSTATIC interaction , *DETECTION limit - Abstract
• Carbon/ZnO coaxial microfibers were synthesized with P. expansum hypha as template. • The P. expansum hypha as template is a green and economical synthesis. • This method for DA detection has a large linear range and low detection limit. • This method was used in detection of DA in pork with a high percentage recovery. Carbon/ZnO coaxial microfibers were synthesized with the hypha of Penicillium expansum as low-cost and green template. The SEM images, XRD and Raman spectra were used to characterize the morphology and chemical components of the prepared microfibers. The formation of the coaxial structure could be attributed to the attachment of Zn2+ onto the hypha surface through coordination and electrostatic interactions. Sensing performance of the carbon/ZnO microfibers toward Dopamine (DA) were evaluated by dropping method. Results showed that the proposed sensor exhibited good selectivity, reproducibility, and stability with a detection limit of 0.106 μM. Two linear ranges were obtained from 0 to 50 and 50 to 300 μM. The practicality of the carbon/ZnO microfibers was supported by the successful detection of DA in pork with recovery ranging from 96.85% to 104.51%. Based on the excellent electrochemical performance and easy preparation, the proposed sensor provides a promising method for determination of DA. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
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