Results 31 to 40 of about 10,139 (192)

Flow injection determination of total catechins and procyanidins in white and red wines [PDF]

, 2002
An easily automatable flow-injection (FI) method for the determination of total catechins is reported. The method is based on the reaction of vanillin in acid medium to yield a coloured product with maximum absorption at 500 nm. After optimisation by the
Carando, Fabios, Garcı́a-Parrilla, J González-Rodrı́guez, M.D Luque de Castro, Mayen, P Pérez-Juan, Prasongsidh   +7 more
core   +1 more source

Anthelmintic A-Type Procyanidins and Further Characterization of the Phenolic Composition of a Root Extract from Paullinia pinnata

Molecules, 2020
Extracts from the roots of Paullinia pinnata L. are used in West Africa as traditional remedies for a variety of diseases including infestations with soil-transmitted helminths.
Verena Spiegler
doaj   +1 more source

Phenolic Profile and Bioactivity Changes of Lotus Seedpod and Litchi Pericarp Procyanidins: Effect of Probiotic Bacteria Biotransformation

Antioxidants, 2023
Theoretically, lactic acid bacteria (LABs) could degrade polyphenols into small molecular compounds. In this study, the biotransformation of lotus seedpod and litchi pericarp procyanidins by Lactobacillus plantarum 90 (Lp90), Streptococcus thermophilus ...
Junren Wen, Yong Sui, Shuyi Li, Jianbin Shi, Sha Cai, Tian Xiong, Fang Cai, Lei Zhou, Shengnan Zhao, Xin Mei   +9 more
doaj   +1 more source

Litchi Flavonoids: Isolation, Identification and Biological Activity

Molecules, 2007
The current status of the isolation, identification, biological activity, utilization and development prospects of flavonoids found in litchi fruit pericarp (LFP) tissues is reviewed. LFP tissues account for approximately 15% by weight of the whole fresh
Jiangrong Li, Yueming Jiang
doaj   +1 more source

Optimizing the Extraction of Procyanidins Oligomers through Decamer [PDF]

, 2017
The extraction of procyanidins from a food is influenced by food matrix, extraction solvent, sample particle size, sample to solvent ratio, as well as other factors.
Koh, Eunmi, Mitchell, Alyson E, Robertson, Danielle   +2 more
core  

Carbon-13 cross-polarization magic-angle spinning nuclear magnetic resonance (CPMAS NMR) for measuring proanthocyanidin content and procyanidin to prodelphinidin ratio in sainfoin (Onobrychis viciifolia) tissues [PDF]

, 2018
A procedure based on 13C CPMAS NMR was developed to study procyanidins (PCs) and prodelphinidins (PDs) directly in milled sainfoin plant tissues. Blackcurrant and Tilia samples enabled reference spectra of purified proanthocyanidin (PA) fractions, crude ...
Drake, Chris, Fryganas, Christos, Kowalczyk, Radoslaw, Mora Ortiz, Marina, Mueller-Harvey, Irene, Ropiak, Honorata M., Smith, Lydia M. J.   +6 more
core   +1 more source

Comprehensive Characterization of Acer truncatum Leaf Extract: Identification of Systemic Metabolites and Effects on Performance, Antioxidant Status, and Intestinal Microbiota in Laying Hens

Animal Research and One Health, EarlyView.
Dietary A. truncatum leaf extract is absorbed and improves laying performance in aged hens by enhancing systemic antioxidant capacity and modulating the gut microbiota. ABSTRACT The demand for natural feed additives is considerably increasing in the antibiotic‐free feed era.
Kailong Qin, Jiantao Yang, Minglu Gao, Xiaozhao Tao, Xin Yang, Yanli Liu, Xiaojun Yang   +6 more
wiley   +1 more source

Procyanidin displayed a synergistic effect with roxadustat on renal anemia in mice

Frontiers in Pharmacology
IntroductionChronic kidney disease (CKD) often leads to renal anemia, a complication traditionally treated with erythropoiesis-stimulating agents (ESAs) and iron supplementation. However, these treatments may increase cardiovascular risks. Procyanidin, a
Mingyang Cui, Zhe Wang, Jiaxin Shi, Wenbin Wu, Jin Tao, Yujing Han, Zihui Yang, Junjie Luo, Yongting Luo, Peng An, Mingyue Sun   +10 more
doaj   +1 more source

Oligomeric Procyanidins Interfere with Glycolysis of Activated T Cells. A Novel Mechanism for Inhibition of T Cell Function

Molecules, 2015
Procyanidins, which are flavonoids that are found in a variety of plant species, reduce or prevent immune disorders, such as allergy and autoimmune diseases, through an unknown mechanism.
Masao Goto, Manabu Wakagi, Toshihiko Shoji, Yuko Takano-Ishikawa   +3 more
doaj   +1 more source

Procyanidins and sensory nutrition; do procyanidins modulate homeostasis via astringent taste receptors?

Bioscience, Biotechnology, and Biochemistry, 2023
ABSTRACT Long-term intake of procyanidins has been suggested to reduce the risk of cardiovascular disease, dementia, and sensory function decline associated with aging. However, most of the ingested procyanidins are not absorbed and are excreted in the feces, so the mechanism of their beneficial impact is unknown.
Osakabe, Naomi, Fushimi, Taiki, Fujii, Yasuyuki, Calabrese, Vittorio   +3 more
openaire   +2 more sources