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RISS 인기검색어
- 검색키워드
- 저자 : Muying Du (검색결과 2 건)
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Effects of Aging Time on the Antioxidant Activity of Pomelo Wine
Muying Du,Yuming You,Xiaojuan Zhao,Fusheng Zhang,Meiling Tian,Jianquan Kan 한국식품과학회 2015 Food Science and Biotechnology Vol.24 No.4
Variations in amino acid and volatile component contents, and in total flavonoid, polyphenol contents and their vitro antioxidant activities at different aging times of pomelo wine were investigated; scavenging rates against DPPH, ABTS, and ferric reducing antioxidant powers were also explored. Most amino acids reached maximum values in the third aging year; and volatile components of pomelo wine also indicated good wine quality in the third year. Total flavonoid and polyphenol contents in pomelo wine were increased and antioxidant activities enhanced during the first 3 years. Samples aged for 3 years had the highest total flavonoid and total polyphenol contents, and the strongest antioxidant activities (38.23±2.16% for DPPH· scavenging effect, 91.84±4.14% for ABTS· scavenging effect, and 0.90±0.07 mmol/L for FRAP value). These parameters gradually decreased after the 3 year period. A significant (p<0.05) correlation between antioxidant activity, and total flavonoid and polyphenol contents was identified.
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Ruokun Yi,Peng Peng,Jing Zhang,Muying Du,Lingxia Lan,Yu Qian,Jie Zhou,Xin Zhao 한국식품영양과학회 2019 Journal of medicinal food Vol.22 No.12
This study determined the ameliorative effects of the novel microorganism, Lactobacillus plantarum CQPC02 (LP-CQPC02), fermented in soybean milk, on loperamide-induced constipation in Kunming mice. High-performance liquid chromatography revealed that LP-CQPC02-fermented soybean milk (LP-CQPC02-FSM) had six types of soybean isoflavones, whereas Lactobacillus bulgaricus-fermented soybean milk (LB-FSM) and unfermented soybean milk (U-FSM) only had five types of soybean isoflavones. LP-CQPC02-FSM also contained more total and active soybean isoflavones than LB-FSM and U-FSM. Results from mouse experiments showed that the defecation factors (quantity, fecal weight and water content, gastrointestinal transit ability, and time to first black stool) in the LP-CQPC02-FSM-treated mice were better than those in the LB-FSM- and U-FSM-treated mice. The serum and small intestinal tissue experiments showed that soybean milk increased the motilin, gastrin, endothelin, acetylcholinesterase, substance P, vasoactive intestinal peptide, and glutathione levels and decreased the somatostatin, myeloperoxidase, nitric oxide, and malondialdehyde levels compared with the constipated mice in the control group. The LP-CQPC02-FSM also showed better effects than those of LB-FSM and U-FSM. Further results showed that LP-CQPC02-FSM upregulated cuprozinc-superoxide dismutase (Cu/Zn-SOD), manganese superoxide dismutase (Mn-SOD), catalase (CAT), c-Kit, stem cell factor (SCF), glial cell-derived neurotrophic factor (GDNF), neuronal nitric oxide synthase (nNOS), endothelial nitric oxide synthase (eNOS), and aquaporin-9 (AQP9) and downregulated the expression levels of transient receptor potential cation channel subfamily V member 1 (TRPV1), inducible nitric oxide synthase (iNOS), and aquaporin-3 (AQP3) in the constipated mice. LP-CQPC02-FSM increased the Bacteroides and Akkermansia abundances and decreased the Firmicutes abundance in the feces of the constipated mice and decreased the Firmicutes/Bacteroides ratio. This study confirmed that LP-CQPC02-FSM partially reversed constipation in mice.
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