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8 results on '"Wu, Yijiao"'

3. Inoculation of Zaopei with biofortification: Inducing variation in community structure and improving flavor compounds in Nongxiangxing baijiu.

Author

Wu, Yijiao, Xu, Pei, Qiu, Xianping, Mao, Yichen, Yu, Jianshen, Tian, Lei, Li, Yanzhong, Zhang, Juan, Zhu, Xiangting, Liu, Ying, Shang, Hongguang, and Guan, Tongwei

Subjects
*STAPHYLOCOCCUS epidermidis, *BIOFORTIFICATION, *BACILLUS subtilis, *MICROBIAL communities, *FERMENTATION
Abstract

The deterioration of the quality of raw liquor caused by the low content of ethyl hexanoate in Nongxiangxing baijiu has become a pervasive problem in the baijiu industry. Therefore, this study attempted to increase the synthesis of ethyl hexanoate by microorganisms with high esterase activity to increase Zaopei fermentation. The results showed that biofortification was a feasible and important way to improve the quality of the raw liquor and increase the ethyl hexanoate content. Adding Bacillus subtilis, Staphylococcus epidermidis, and Millerozyma farinosa for biofortified fermentation disturbed the microbial community structure of Zaopei and increased the abundance of Wickerhamomyces, Saccharomyces, and Thermoascus. The contents of ethyl hexanoate, ethyl valerate, ethyl caprylate, and ethyl heptanoate also increased noticeably in baijiu. The results of E‐nose and sensory analysis tested and verified that the baijiu in the fortified group had better flavor characteristics. [ABSTRACT FROM AUTHOR]

Published
2024
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5. Multislice computed tomography performance in differential diagnosis of high-density thymic cyst and thymoma in lesions less than 3 cm

Author

Pu Zhitao, Hu Bibo, Wang Yongfeng, Wu YiJiao, Jin Yinhua, Jin Zhonggao, Zheng Jianjun, Wang Jun, and Li Diansheng

Subjects
Pulmonary and Respiratory Medicine, Thymoma, Receiver operating characteristic, business.industry, High density, General Medicine, Multislice computed tomography, Thymic cyst, medicine.disease, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Oncology, 030220 oncology & carcinogenesis, Carcinoma, medicine, Differential diagnosis, Nuclear medicine, business, Pathological
Abstract

BACKGROUND This study was conducted to evaluate the performance of multislice computed tomography (MSCT) to diagnose high-density thymic cysts and thymomas in lesions measuring < 3 cm. METHODS The records of 42 patients admitted to Ningbo No. 2 Hospital with an anterior mediastinal mass (diameter < 3 cm) suspected of carcinoma originating from the thymus were retrospectively analyzed. All patients underwent surgery and pathological examination. Twenty-eight were diagnosed with thymic cysts and 14 with thymoma. The features of thymic cysts and thymomas revealed on MSCT were compared. RESULTS Mediastinal masses with a triangular or teardrop shape and a straight mediastina-lung border were more likely to be diagnosed as thymic cysts (P < 0.05), while those with a bulging nodule-lung border were more likely thymomas (P < 0.05). Using the CT value as a reference for differential diagnosis, the diagnostic sensitivity, specificity, and area under the receiver operating characteristic curve for CT values of non-contrast CT images, enhanced CT values, and ΔCT values were 0.65 (0.47-0.84), 0.95(0.86-1.00), and 0.96 (0.89-1.00), respectively. CONCLUSION MSCT of high-density thymus gland nodules (maximum diameter ≤ 3 cm) can reveal specific features that could be helpful for differential diagnosis.

Published
2018

8. Promoting microbial community succession and improving the content of esters and aromatic compounds in strong-flavor Daquvia bioaugmentation inoculation

Author

Xu, Pei, Wu, Yijiao, Chen, Hang, Liu, Ying, Yang, Na, Mao, Yichen, Tian, Lei, He, Zongjun, Qiu, Xianping, and Guan, Tongwei

Abstract

Daqu, an indispensable starter, significantly affects the quality and yield of Chinese baijiu. The microbial community, physicochemical properties, and volatile components of traditional Daqu(TD) and fortified Daqu(FD) were analyzed and compared. The bioturbation effect of inoculation with Bacillus subtilis, Staphylococcus epidermidis,and Millerozyma farinosaon strong-flavor Daquwas discussed. The results indicated a significant decrease in Bacillusand an increase in five bacterial genera (e.g., Weissellaand Staphylococcus) and four fungal genera (e.g., Saccharomycopsisand Millerozyma) after bioaugmentation inoculation. The volatile compound content, including esters and aromatic compounds, increased dramatically after bioaugmentation inoculation. The correlation analysis showed that the Weissella, Pediococcus, and Staphylococcusin FD were positively associated with esterification activity. Moreover, PICRUSt2 predicted many enzymes involved in aroma production and ethanol fermentation. Bioaugmentation inoculation promoted microbial community succession and regulated microbial metabolic activity to enhance the flavor characteristics of Daqu.

Published
2023
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