In this study, composite pear juice was processed by ultra-high pressure homogenization (UHPH) at four different pressures (50, 100, 150, and 200 MPa) with six different temperatures (4, 20, 30, 40, 60, and 80°C), then microorganism and physicochemical and nutritional properties of the samples were investigated. The counts of total aerobic bacteria (TAB) and yeasts and molds (Y&M) were reduced by 0.89-4.72 log10 CFU/ml and 0.40-3.03 log10 CFU/ml after processing, respectively. There was no significant change on total soluble solid and color, but significant decreases of pH and particle size value were observed, and the antioxidant activity, total phenolic content, viscosity, and suspension stability significantly increased in treated samples. Compared to the untreated samples, polyphenol oxidase (PPO) and peroxidase (POD) activity of UHPH-treated samples varied between 97%-126% and 81%-165%, respectively, indicating that the PPO and POD activities could be inactivated or activated by UHPH. This study introduced proper temperature combined with UHPH could improve the microbial inactivation and the quality of the compound juice.
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http://dx.doi.org/10.1002/fsn3.2906 | DOI Listing |
Int J Biol Macromol
December 2024
College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian 361021, China; Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, Fujian 361021, China. Electronic address:
Bangia fusco-purpurea polysaccharide (UBFP) with ultra-high pressure assisted extraction has good in vitro hypolipidemic activity. To be explored as a natural hypolipidemic agent, the alleviation effect of UBFP on in vivo dyslipidemia in high-fat diet (HFD) induced mice was further investigated. Compared with native polysaccharide (BFP), UBFP was better to reduce weight gain, fat accumulation, serum and hepatic lipid abnormalities for HFD induced mice.
View Article and Find Full Text PDFZhongguo Zhong Yao Za Zhi
November 2024
School of Traditional Chinese Medicine, Capital Medical University Beijing 100069, China Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research Beijing 100069, China.
This study rapidly identified and quantified the chemical components of the Wuzhuyu Decoction nanophase(WZYD-N) and suspension phase(WZYD-S) using ultra-high performance liquid chromatography coupled with triple quadrupole mass spectrometry(UPLC-QQQ-MS/MS). Based on preliminary pharmacodynamic experiments and network pharmacology analysis, the differential anti-inflammatory and analgesic activities of WZYD-N and WZYD-S were explored to understand their pharmacodynamic basis. WZYD-N and WZYD-S were separated by differential centrifugation-dialysis, and their particle size, Zeta potential, PDI, and morphology were characterized by dynamic light scattering and transmission electron microscopy.
View Article and Find Full Text PDFZhongguo Zhong Yao Za Zhi
September 2024
School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023, China State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China.
Ultra-high performance liquid chromatography with quadrupole time-of-flight mass spectrometry(UPLC-Q-TOF-MS), UNIFI software, and a self-built compound library of Longxuejie Capsules were employed to analyze the pharmacodynamic substances of Longxuejie Capsules and the metabolites in rats. The methanol extracts of capsule contents as well as the plasma, urine, and fecal metabolites of rats after drug administration were prepared. Data were collected in both positive and negative MS~E Continuum scan modes via UPLC-Q-TOF-MS.
View Article and Find Full Text PDFZhongguo Zhong Yao Za Zhi
September 2024
Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China.
The activity of rare saponins is generally better than that of their prototypes. There are significant differences in the proportions and pharmacological effects of rare saponins/prototype saponins in Gynostemma pentaphyllum samples dried with different methods, which may be related to the reaction catalyzed by glucosidase. To explore the pattern of the enzymatic reaction catalyzed by glucosidase during the processing of G.
View Article and Find Full Text PDFZhongguo Zhong Yao Za Zhi
September 2024
Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences Changchun 130112, China College of Pharmacy and Biological Engineering, Chengdu University Chengdu 610106, China.
To explore the difference in metabolism and transcription between seeds experiencing space flight and ground seeds after morphological post ripening, this study utilized ginseng seeds experiencing space flight and ground seeds as materials. Metabolomics and transcriptomics analyses were conducted using ultra-high performance liquid chromatography-mass spectrometry(UPLC-MS) and high-throughput transcriptome sequencing(RNA-seq) technologies, so as to identify differential terpenoid metabolites, differential endogenous hormones, and differentially expressed genes. The results showed that through metabolomics analysis, a total of 22 differential terpenoid metabolites were identified in the experimental and control groups, including chikusetsusaponin FK_7, ginsenoside F_2, ginseno-side K, majoroside R_1, ginsenoside Re_5, 12-hydroxyabietic acid, etc; through transcriptomics analysis, 15 differential terpenoid metabolism-related differentially expressed genes were identified in the experimental and control groups, including FCase, AACT, PMK, etc, and these genes were integrated into the pathway based on the MEP and MVA.
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