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201 results on '"Miao, Xiaoqing"'

13. Exploring the Impact of Different Processing Techniques on Quality and Flavor Characteristics in Hoki Steak Soups.

Author

Miao, Xiaoqing, Li, Jing, Li, Shuang, Li, Guodong, Dong, Xiuping, and Jiang, Pengfei

Subjects
*AMINO acids, *SOUPS, *FLAVOR, *EBULLITION, *SPECTROMETRY
Abstract

ABSTRACT This study investigated the effect of different processing methods (boiling, oil boiling, and stir frying) on the flavor of hoki steak soups. The quality of different fillet broths was explored by pH, Thiobarbituric acid reactive substances (TBARS), and color. E‐nose, E‐tongue, and gas chromatography‐ion mobility spectrometry (GC‐IMS) combined with free amino acids (FAAs) were used to analyze the flavor of hoki steak soups. Key compounds were screened by relative odor activity value (ROAV). The variable influence on projection (VIP) was used to identify the differential compounds. The E‐nose and E‐tongue were able to distinguish hoki steak soups. A total of 47 volatile compounds were characterized by GC‐IMS. n‐Pentanal (M) was the key component for the difference between hoki steak soups. There were six substances with ROAV ≥ 1. The results showed that the hoki steak soup boiled for 2 h in the stir‐frying group had a lower fishy odor. [ABSTRACT FROM AUTHOR]

Published
2024
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40. Volatile flavor profiles of douchis from different origins and varieties based on GC-IMS and GC-O-QTOF/MS analysis.

Author

Miao, Xiaoqing, Zhang, Rui, Jiang, Shan, Song, Zhiyuan, Du, Ming, and Liu, Aidong

Subjects
*TIME-of-flight mass spectrometry, *FLAVOR, *ALDEHYDES, *SPECTROMETRY, *ESTERS, *ION mobility spectroscopy
Abstract

The present study comprehensively characterized the flavor differences between different varieties of douchis from different origins using headspace gas chromatography-ion mobility spectrometry (HS-GC-IMS) coupled with gas chromatography-olfactometry-quadrupole time-of-flight mass spectrometry (GC-O-QTOF/MS). A total of 91 volatile organic compounds (VOCs) were identified using HS-GC-IMS and 70 VOCs were identified using GC-O-QTOF/MS, mainly including acids, aldehydes, esters and alcohols. Additionally, 23 key aroma-presenting compounds were screened in five douchi species using relative odor activity value (ROAV) and the aroma compounds that contributed the most to the aroma varied among the five douchi species. Comparative analysis of the GC-IMS and GC-O-QTOF/ MS results yielded 13 VOCs that were detected by both techniques. Nonanal, hexanal, eucalyptol, 1-octen-3-ol, isoamyl acetate, and 2-pentylfuran were identified as key VOCs in the douchi species using both methods. These findings will provide deeper insights for exploring flavor differences in douchi from different geographic sources. • Characterization of VOCs of five douchi species by GC-IMS and GC-O-QTOF/MS. • 91 VOCs were identified by GC-IMS, 70 by GC-O-QTOF/MS. • Relative contents of acids and esters were high in five douchi species. • The key aroma compounds in five douchi species were completely different. [ABSTRACT FROM AUTHOR]

Published
2024
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44. Safety Evaluation of an Apitherapy Formulation, Bao-Yuan-Ling: Acute and Sub-acute Oral Toxicity in Wistar Rats

Author

Shen Zhenhuang, Sun Yanru, Miao Xiaoqing, and Jia Zhe

Subjects
Apitherapy, Nutrition and Dietetics, Traditional medicine, business.industry, Medicine (miscellaneous), Medicine, Sub acute, Oral toxicity, business
Abstract

Bao-Yuan-Ling (BYL) is an apitherapy formulation which is composed of royal jelly, propolis and bee venom. Cardioprotective effects of BYL has been demonstrated, while the toxicity of BYL was not clear. In this study, acute and sub-acute toxicity test of BYL was processed following Organization for Economic Co-operation and Development (OECD) 423 and OECD 407, respectively, in Wistar rats. In acute toxicity test, rats were orally treated with BYL at the single dose of 2000 mg/kg and 5000 mg/kg. No death occurred in the acute toxicity test for 7 days, which indicated the lethal dose 50% value exceeded 5000 mg/kg. In sub-acute toxicity study, rats were treated with BYL at the dose of 250 mg/kg, 500 mg/kg and 1000 mg/kg in a daily base for continuous 28 days. Results showed that female rats were more likely to be affected by BYL in body weight changes, while biochemical indicators of blood serum in male rats were more susceptible to drug effects. However, neither female nor male rats were affected by BYL administration significantly on the organs via hematoxylin-eosin staining analysis. Results suggested that BYL was slightly toxic and clinical use was safe and reliable.

Published
2017
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