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1. Formation of Nε-(carboxymethyl)lysine and Nε-(carboxyethyl)lysine during black tea processing

Author:
Jiao, Ye; He, Jialiang; He, Zhiyong; Gao, Daming; Qin, Fang; Xie, Mingyong; Zeng, Maomao; Chen, Jie
Source:
Food research international 2019 v.121 pp. 738-745
ISSN:
0963-9969
Subject:
epicatechin,   etc   ; black tea; cell structures; drying; epigallocatechin gallate; fermentation; fructose; gallic acid; glucose; lysine; models; polyphenols;     Show all 12 Subjects
Abstract:
... This study selected common processing methods for orthodox black tea and investigated changes in the levels of Nε-(carboxymethyl)lysine (CML), Nε-(carboxyethyl)lysine (CEL), lysine, and polyphenols during each processing stage and using different parameters of each processing step. The effects of epicatechin gallate, epigallocatechin, epigallocatechin gallate, and gallic acid on the levels of CML, ...
DOI:
10.1016/j.foodres.2018.12.051

2. A semisynthetic approach for the simultaneous reaction of grape seed polymeric procyanidins with catechin and epicatechin to obtain oligomeric procyanidins in large scale

Author:
Bai, Ruifang; Cui, Yan; Luo, Lanxin; Yuan, Danbing; Wei, Zongmin; Yu, Weichao; Sun, Baoshan
Source:
Food chemistry 2019 v.278 pp. 609-616
ISSN:
0308-8146
Subject:
epicatechin,   etc   ; bioactive properties; catechin; countercurrent chromatography; grape seeds; hydrochloric acid; procyanidins; response surface methodology; temperature;     Show all 9 Subjects
Abstract:
... Polymeric procyanidins (PPCs) were the major constituents of procyanidins, while they have poor bioactivity. To better utilize PPCs, a semisynthetic approach for converting PPCs to oligomeric procyanidins (OPCs) was proposed. Grape seed PPCs were simultaneously reacted with catechin (C) and epicatechin (EC) under acid condition. Combining response surface methodology (RSM) and single-factor experi ...
DOI:
10.1016/j.foodchem.2018.11.091

3. Profile of phenolic compounds and antioxidant activity of finger millet varieties

Author:
Xiang, Jinle; Apea-Bah, Franklin B.; Ndolo, Victoria U.; Katundu, Mangani C.; Beta, Trust
Source:
Food chemistry 2019 v.275 pp. 361-368
ISSN:
0308-8146
Subject:
epicatechin,   etc   ; Eleusine coracana; antioxidant activity; antioxidants; catechin; color; ferulic acid; healthy diet; proanthocyanidins; Malawi;     Show all 10 Subjects
Abstract:
... The profiles of phenolic compounds and antioxidant capacities of four finger millet varieties harvested in northern Malawi were investigated. The total phenolics, flavonoids and condensed tannins in the free fractions ranged from 114.43 to 179.19 mg ferulic acid equivalent (FAE)/100 g, 90.24 to 202.94 mg catechin equivalent (CE)/100 g and 31.76 to 83.59 mg CE/100 g, respectively. Total phenolic co ...
DOI:
10.1016/j.foodchem.2018.09.120

4. Impact of a post-fermentative maceration with overripe seeds on the color stability of red wines

Author:
Rivero, Francisco J.; Jara-Palacios, M. José; Gordillo, Belén; Heredia, Francisco J.; González-Miret, M. Lourdes
Source:
Food chemistry 2019 v.272 pp. 329-336
ISSN:
0308-8146
Subject:
epicatechin,   etc   ; catechin; color; colorimetry; gallic acid; maceration; polymerization; procyanidins; red wines; seeds;     Show all 10 Subjects
Abstract:
... With the purpose of modulating the copigmentation equilibria of red wines, an environmentally sustainable process was performed based on post-fermentative addition of overripe seeds (OS). Simple (SW) and double (DW) addition were performed to produce different enrichment of phenolics from seeds, hence different copigmentation/polymerization ratios.The determination of the phenolic composition show ...
DOI:
10.1016/j.foodchem.2018.08.008

5. Biological functions of epicatechin: Plant cell to human cell health

Author:
Prakash, Monika; Basavaraj, B.V.; Chidambara Murthy, K.N.
Source:
Journal of functional foods 2019 v.52 pp. 14-24
ISSN:
1756-4646
Subject:
epicatechin,   etc   ; antioxidant activity; bioavailability; catechin; functional foods; humans; in vivo studies; nanotechnology; pharmacokinetics; therapeutics;     Show all 10 Subjects
Abstract:
... Research on epicatechin as a potential nutraceutical has gained huge interest due to its critical biological functions and ease of availability. Several in vitro and in vivo studies have been carried out to explore its therapeutic potential and have shown excellent biological effects. In spite of its wide range of biological activity, poor bioavailability and instability in in vivo system have lim ...
DOI:
10.1016/j.jff.2018.10.021

6. Visualized analysis of within-tissue spatial distribution of specialized metabolites in tea (Camellia sinensis) using desorption electrospray ionization imaging mass spectrometry

Author:
Liao, Yinyin; Fu, Xiumin; Zhou, Haiyun; Rao, Wei; Zeng, Lanting; Yang, Ziyin
Source:
Food chemistry 2019 v.292 pp. 204-210
ISSN:
0308-8146
Subject:
epicatechin,   etc   ; Camellia sinensis; catechin; desorption; epigallocatechin gallate; gallic acid; image analysis; ionization; leaves; mass spectrometry; metabolites; polyphenols; roots; tea; tissues;     Show all 15 Subjects
Abstract:
... Although specialized metabolite distributions in different tea (Camellia sinensis) tissues has been studied extensively, little is known about their within-tissue distribution owing to the lack of nondestructive methodology. In this study, desorption electrospray ionization imaging mass spectrometry was used to investigate the within-tissue spatial distributions of specialized metabolites in tea. ...
DOI:
10.1016/j.foodchem.2019.04.055

7. Kinetic evaluation of the reaction between methylglyoxal and certain scavenging compounds and determination of their in vitro dicarbonyl scavenging activity

Author:
Cömert, Ezgi Doğan; Gökmen, Vural
Source:
Food research international 2019 v.121 pp. 257-268
ISSN:
0963-9969
Subject:
epicatechin,   etc   ; beverages; chlorogenic acid; creatine; cysteine; epigallocatechin gallate; gallic acid; genistein; hesperetin; monitoring; naringin; phloridzin; polyphenols; quercetin; resveratrol; sulfur; tryptophan;     Show all 17 Subjects
Abstract:
... This study aimed to investigate the reaction between methylglyoxal and amino acids, polyphenols and sulfur compounds and to provide a new approach for the determination of their dicarbonyl scavenging activities. Various pure compounds and beverages were reacted with methylglyoxal under physiological conditions over a week while monitoring methylglyoxal concentration. From the kinetic data, reactio ...
DOI:
10.1016/j.foodres.2019.03.046

8. Polyphenols accumulation effects on surface color variation in apple slices hot air drying process

Author:
Li, Xuan; Wu, Xinye; Bi, Jinfeng; Liu, Xuan; Li, Xiao; Guo, Chongting
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2019 v.108 pp. 421-428
ISSN:
0023-6438
Subject:
epicatechin,   etc   ; air; air drying; apples; catechin; chlorogenic acid; color; dried fruit; enzymatic browning; flavor; models; nutritive value; polyphenols; prediction; slicing;     Show all 15 Subjects
Abstract:
... Polyphenols are closely related to the nutritional value, flavor, and color of dried apple products. In present work, the correlation of polyphenol accumulation with apple slices browning in hot air drying (65 °C, 2 m/s air velocity) process was investigated. Polyphenols composition were distinguished in different apple varieties, among which chlorogenic acid, epicatechin were the most abundant co ...
DOI:
10.1016/j.lwt.2019.03.098

9. Randomized study of the effects of cocoa-rich chocolate on the ventricle–arterial coupling and vascular function of young, healthy adults

Author:
Pereira, Telmo; Bergqvist, Jacqueline; Vieira, Carla; Grüner Sveälv, Bente; Castanheira, Joaquim; Conde, Jorge
Source:
Nutrition 2019 v.63-64 pp. 175-183
ISSN:
0899-9007
Subject:
epicatechin,   etc   ; aorta; cardiac output; chocolate; eating habits; heart; long term effects; nutrition assessment; potential energy; ultrasonography; young adults;     Show all 11 Subjects
Abstract:
... The aim of this study was to evaluate and explore the benefits of long-term dark chocolate intake in young, healthy adults by measuring cardiovascular function.A randomized study was conducted with 30 healthy participants ages 18 to 27 y. Half of the participants ingested a 20-g dose of lower cocoa chocolate (LCC; ∼55%; 12.6 ± 1.4 mg equivalent of epicatechin/g) and the others ingested a daily dos ...
DOI:
10.1016/j.nut.2019.02.017

10. Characterization of peel and pulp proanthocyanidins and carotenoids during ripening in persimmon “Kaki Tipo” cv, cultivated in Italy

Author:
Bordiga, Matteo; Travaglia, Fabiano; Giuffrida, Daniele; Mangraviti, Domenica; Rigano, Francesca; Mondello, Luigi; Arlorio, Marco; Coïsson, Jean Daniel
Source:
Food research international 2019 v.120 pp. 800-809
ISSN:
0963-9969
Subject:
epicatechin,   etc   ; carotenoids; catechin; cultivars; epigallocatechin gallate; flavonols; high performance liquid chromatography; myricetin; persimmons; pollination; polymerization; proanthocyanidins; pulp; ripening; Italy;     Show all 15 Subjects
Abstract:
... The proanthocyanidins and carotenoids composition of peel and pulp from persimmon “Seedless Pollination Variant Non-Astringent” cultivar during ripening was evaluated. Phloroglucinolysis method, combined with HPLC separation, confirmed three terminal units, the flavonol myricetin, in addition to the typical flavan-3-ols catechin and epicatechin. The extender units were epicatechin, epigallocatechi ...
DOI:
10.1016/j.foodres.2018.11.041

11. Influence of alkaline salt cooking on solubilisation of phenolic compounds of bambara groundnut (Vigna subterranea (L.) Verdc.) in relation to cooking time reduction

Author:
Mubaiwa, Juliet; Fogliano, Vincenzo; Chidewe, Cathrine; Linnemann, Anita R.
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2019 v.107 pp. 49-55
ISSN:
0023-6438
Subject:
epicatechin,   etc   ; Vigna subterranea; beans; boiling; catechin; cooking; hardness; polyphenols; sodium bicarbonate; solubilization; water uptake; Sub-Saharan Africa;     Show all 12 Subjects
Abstract:
... Bambara groundnut (Vigna subterranea (L.) Verdc.) is an underutilized crop native to sub-Saharan Africa. Its utilisation is limited due to the development of the hard-to-cook (HTC) phenomenon during storage. Various factors have been implicated in the development of the HTC phenomenon. Alkaline rock salts, such as gowa, are known to reduce cooking time. In this research, red bambara groundnuts wer ...
DOI:
10.1016/j.lwt.2019.02.067

12. Effects of hydroalcoholic and enzyme-assisted extraction processes on the recovery of catechins and methylxanthines from crude and waste seeds of guarana (Paullinia cupana)

Author:
Santana, Ádina L.; Macedo, Gabriela A.
Source:
Food chemistry 2019 v.281 pp. 222-230
ISSN:
0308-8146
Subject:
epicatechin,   etc   ; Paullinia cupana; antioxidants; beverages; caffeine; catechin; cold; humans; maceration; nonfood industry; seeds; solubilization; theobromine; theophylline; value-added products; wastes;     Show all 16 Subjects
Abstract:
... Catechins and methylxanthines are natural molecules in guarana (Paullinia cupana) that are associated with antioxidant and stimulatory effects in the human body. There are few natural sources of these antioxidants. The most popular molecule used in foods and beverages is caffeine, which, most of the time, is derived from synthetic sources. In this work, cold hydroalcoholic (CHM), hot hydroalcoholi ...
DOI:
10.1016/j.foodchem.2018.12.091

13. UPLC-QqQ-MS/MS-based phenolic quantification and antioxidant activity assessment for thinned young kiwifruits

Author:
Jiao, Yang; Chen, Donglin; Fan, Mingtao; Young Quek, Siew
Source:
Food chemistry 2019 v.281 pp. 97-105
ISSN:
0308-8146
Subject:
epicatechin,   etc   ; antioxidant activity; antioxidants; cultivars; detection limit; functional foods; kiwifruit; maturity stage; phenolic compounds; tandem mass spectrometry; New Zealand;     Show all 11 Subjects
Abstract:
... For the first time, thinned young kiwifruits (TYK) have been investigated as a source of deserted agriculture resource and evaluated for their phenolic characteristics along with antioxidant capacity. Two batches of TYK in different maturity stages (TYK1 and TYK2) and mature kiwifruits (MK) were sourced from three New Zealand cultivars. Comparing with MK, the TYK, especially TYK1, exhibited signif ...
DOI:
10.1016/j.foodchem.2018.12.062

14. Comparison of phenolic profiles and antioxidant activities in skins and pulps of eleven grape cultivars (Vitis vinifera L.)

Author:
LI, Fu-xiang; LI, Fu-hua; YANG, Ya-xuan; YIN, Ran; MING, Jian
Source:
Journal of integrative agriculture 2019 v.18 no.5 pp. 1148-1158
ISSN:
2095-3119
Subject:
epicatechin,   etc   ; 2,2-diphenyl-1-picrylhydrazyl; Vitis vinifera; catechin; cultivars; grapes; kaempferol; oxygen radical absorbance capacity; principal component analysis; rutin;     Show all 10 Subjects
Abstract:
... Eleven grape cultivars were analysed to explore the variety differences of fresh grape phenolic profiles. The results showed that free phenolics were predominant in grape skins and pulps, and showed the higher antioxidant activities than bound. In 11 cultivars, Muscat Kyoho extracts had the highest total phenolic content in skins (10.525 mg GAE g−1 FW) and pulps (1.134 mg GAE g−1 FW), and exhibite ...
DOI:
10.1016/S2095-3119(18)62138-0

15. Effect of winemaking on phenolic profile, colour components and antioxidants in Crljenak kaštelanski (sin. Zinfandel, Primitivo, Tribidrag) wine

Author:
Generalić Mekinić, Ivana; Skračić, Živko; Kokeza, Ana; Soldo, Barbara; Ljubenkov, Ivica; Banović, Mara; Skroza, Danijela
Source:
Journal of food science and technology 2019 v.56 no.4 pp. 1841-1853
ISSN:
0022-1155
Subject:
epicatechin,   etc   ; anthocyanins; antioxidant activity; catechin; color; enzymes; free radical scavengers; gallic acid; grapes; maceration; statistical analysis; winemaking; wines;     Show all 13 Subjects
Abstract:
... Crljenak kaštelanski or Tribidrag is a Croatian autochthonous grape variety which is a parent of the America’s most popular variety Zinfandel or Italian Primitivo. The aim of this study was to investigate the dynamics of extraction of phenolics and changes in antioxidant activity of the samples collected during maceration of C. kaštelanski grapes processed using two different macerating enzymes. A ...
DOI:
10.1007/s13197-019-03638-4

16. Guaraná (Paullinia cupana) catechins and procyanidins: Gastrointestinal/colonic bioaccessibility, Caco-2 cell permeability and the impact of macronutrients

Author:
Mendes, Thaíse Maria Nogueira; Murayama, Yukihisa; Yamaguchi, Natsumi; Sampaio, Geni Rodrigues; Fontes, Luciana Cristina Brigatto; Torres, Elizabeth Aparecida Ferraz da Silva; Tamura, Hirotoshi; Yonekura, Lina
Source:
Journal of functional foods 2019 v.55 pp. 352-361
ISSN:
1756-4646
Subject:
epicatechin,   etc   ; Paullinia cupana; bioavailability; casein; catechin; human cell lines; humans; intestinal mucosa; oxidative stress; permeability; procyanidins; provenance; seeds; vegetable oil;     Show all 14 Subjects
Abstract:
... Guaraná (Paullinia cupana) seeds are rich in flavan-3-ols (catechins) and reduce oxidative stress in humans. We determined the concentration and in vitro bioaccessibility of catechins in guaraná seeds from two geographical origins, and measured their Caco-2 permeability. The effect of macronutrients on catechins’ bioaccessibility and Caco-2 permeability was also evaluated. Guaraná seeds from south ...
DOI:
10.1016/j.jff.2019.02.026

17. Capillary electrophoresis-based online immobilized enzyme reactor for beta-glucosidase kinetics assays and inhibitors screening

Author:
Wu, Zhao-Yu; Zhang, Hao; Li, Qiao-Qiao; Yang, Feng-Qing; Li, De-Qiang
Source:
Journal of chromatography 2019 v.1110-1111 pp. 67-73
ISSN:
1570-0232
Subject:
epicatechin,   etc   ; batch systems; beta-glucosidase; capillary electrophoresis; chromatography; coatings; computer simulation; enzyme kinetics; epigallocatechin gallate; genistein; immobilized enzymes; models; screening;     Show all 13 Subjects
Abstract:
... A capillary electrophoresis (CE)-based beta-glucosidase (beta-Glu) immobilized enzyme microreactor (IMER) was constructed for enzyme kinetics study and inhibitor screening with the aid of polydopamine coating. The enzyme kinetic and inhibition studies of beta-Glu were comprehensively evaluated using p-nitrophenyl beta-d-glucopyranoside as a model substrate and castanospermine as a model inhibitor. ...
DOI:
10.1016/j.jchromb.2019.02.002

18. Effect of malvidin-3-glucoside and epicatechin interaction on their ability to interact with salivary proline-rich proteins

Author:
Soares, Susana; Santos Silva, Mafalda; García-Estévez, Ignacio; Brandão, Elsa; Fonseca, Fátima; Ferreira-da-Silva, Frederico; Teresa Escribano-Bailón, M.; Mateus, Nuno; de Freitas, Victor
Source:
Food chemistry 2019 v.276 pp. 33-42
ISSN:
0308-8146
Subject:
epicatechin,   etc   ; anthocyanins; astringency; calorimetry; color; electrostatic interactions; hydrophilic interactions; hydrophobicity; pH; polyphenols; proteins; red wines; synergism; titration;     Show all 14 Subjects
Abstract:
... At red wine pH, malvidin-3-glucoside (mv-3-glc), the major anthocyanin of red wine, is expected to be present mainly in its non-colored hemiketal form. However, due to copigmentation with flavanols (e.g. epicatechin), the stabilization of the colored forms of mv-3-glc occurs. Some flavanols have been linked to astringency, due to their ability to interact/precipitate salivary proteins, namely prol ...
DOI:
10.1016/j.foodchem.2018.09.167

19. Intravariety Diversity of Bioactive Compounds in Trinitario Cocoa Beans with Different Degrees of Fermentation

Author:
Febrianto, Noor Ariefandie; Zhu, Fan
Source:
Journal of agricultural and food chemistry 2019 v.67 no.11 pp. 3150-3158
ISSN:
1520-5118
Subject:
epicatechin,   etc   ; anthocyanins; bioactive compounds; cocoa beans; cyanidin; farm management; fermentation; flavonols; phenolic acids; planting; proanthocyanidins; sensory properties; Indonesia;     Show all 13 Subjects
Abstract:
... There has been increasing interest in the bioactive components of cocoa beans as they are related to the nutritional and sensory quality of cocoa products. Sulawesi 1 (Sul 1) cocoa beans (Trinitario variety) with different degrees of fermentation were collected from Indonesia. Quantification of bioactive compounds in these beans was done to better understand its intravariety diversity in the compo ...
DOI:
10.1021/acs.jafc.8b06418

20. The dynamic changes of catechins and related genes in tea (Camellia sinensis) flowers

Author:
Sun, Litao; Wang, Yu; Ding, Zhaotang; Liu, Feng
Source:
Acta physiologiae plantarum 2019 v.41 no.2 pp. 30
ISSN:
0137-5881
Subject:
epicatechin,   etc   ; Camellia sinensis; biosynthesis; catechin; epigallocatechin gallate; flavonols; flowering; naringenin-chalcone synthase; phenylalanine ammonia-lyase; tea; transcription factors; unigenes;     Show all 12 Subjects
Abstract:
... As the main components in tea flowers, catechins are accumulated at each stage of tea flowering. However, little information on the accumulation mechanism of catechins during tea flowering is available. Here, we analyzed the accumulation of catechins in tea flowers as well as the expressions of related genes during tea flowering. The results indicated that 99 unigenes and 269 transcription factors ...
DOI:
10.1007/s11738-019-2822-0