Effect of tea polyphenols on flavour, healthcare components, physicochemical properties, and mechanisms of collagen synthesis in growing grass carp (Ctenopharyngodon idella) muscle was written by Ma, Yao-Bin;Zhang, Jin-Xiu;Zhou, Xiao-Qiu;Jiang, Wei-Dan;Wu, Pei;Liu, Yang;Kuang, Sheng-Yao;Tang, Ling;Feng, Lin. And the article was included in Aquaculture in 2021.HPLC of Formula: 137-08-6 This article mentions the following:
This study aimed to investigate whether dietary TP in growing grass carp could provide high quality fish flesh. 540 fish (187.49 ± 0.66 g) were fed six diets with different concentrations of TP (0, 40, 80, 120, 160 and 200 mg / kg) for 60 days to determine the effects of TP on flesh quality. The results demonstrated that appropriate dietary TP supplementation benefits growing grass carp in the following respects: (1) promoting performance of growth and nutritional value of fish, (2) enhancing flavor of flesh by increasing the levels of umami-taste free amino acids (glutamic acid and aspartic acid) (3) increasing healthcare components of flesh particularly eicosapentaenoic acid (EPA 20:5n-3) and docosahexaenoic acid (DHA 22:6n-3), (4) improving physicochem. properties (firmness,pH, water-holding capacity) of flesh. The present research explores, for the first time, the effects of TP on enhancing the collagen content, which is partly correlated with the upregulation of type I collagen synthesis genes Col1α1 and Col1α2, mediated through transforming growth factor-β1 (TGF-β1) by Smad pathway in fish muscle. Based on growth performance (percentage weight gain) and fish flesh quality indexes (EPA, DHA, shear force, and pH), the appropriate dietary supplementation of TP in growing grass carp were assessed to be 103.01, 116.30, 106.60, 141.15 and 113.49 mg/kg, using quadratic regression anal. In the experiment, the researchers used many compounds, for example, Calcium (R)-3-(2,4-dihydroxy-3,3-dimethylbutanamido)propanoate (cas: 137-08-6HPLC of Formula: 137-08-6).
Calcium (R)-3-(2,4-dihydroxy-3,3-dimethylbutanamido)propanoate (cas: 137-08-6) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.HPLC of Formula: 137-08-6
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts