1
|
Soendjaja V, Girard AL. Effects of plant polyphenols on lipid oxidation in pea and soy protein solutions. Food Chem 2024; 433:137340. [PMID: 37666122 DOI: 10.1016/j.foodchem.2023.137340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/24/2023] [Accepted: 08/28/2023] [Indexed: 09/06/2023]
Abstract
Significant lipid-derived off-flavors hinder broader acceptance and applicability of plant protein ingredients. Polyphenols are strong antioxidants and can react with protein and carbonyl compounds to reduce oxidative off-flavor development. The effects of polyphenols (catechin, tannic acid (TA), grape seed extract (GSE), and green tea extract (GTE)) on lipid oxidation in pea and soy protein solutions were investigated. All polyphenols reduced lipid oxidation products and volatile compound concentration versus their respective controls. TA, GSE, and GTE reduced the secondary products in pea and soy proteins by an average of 75 % and 50 %, respectively, versus controls, compared to catechin's 61 % and 13 %, respectively. The chemical structures of TA, GSE, and GTE likely allowed them to interact more effectively than catechin with proteins, especially lipoxygenase. However, no significant differences between the polyphenols' antioxidant capacities were observed. Thus, polyphenols predominantly reduced lipid oxidation via interactions with proteins, rather than electron transfer or radical quenching.
Collapse
Affiliation(s)
- Vanessa Soendjaja
- Department of Food Science, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Audrey L Girard
- Department of Food Science, University of Wisconsin-Madison, Madison, WI 53706, USA.
| |
Collapse
|
2
|
Zhang Q, Pan J, Liu H, Jiao Z. Characterization of the Synergistic Antioxidant Activity of Epigallocatechin Gallate (EGCG) and Kaempferol. Molecules 2023; 28:5265. [PMID: 37446925 DOI: 10.3390/molecules28135265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/30/2023] [Accepted: 07/06/2023] [Indexed: 07/15/2023] Open
Abstract
Epigallocatechin gallate (EGCG) and kaempferol exhibit cellular antioxidant activity; however, their interactive effects in terms of antioxidant actions and underlying mechanisms remain unclear. In this study, their cytoprotective effects were examined against 2,2-azobis (2-amidinopropane) dihydrochloride solution (ABAP)-induced oxidative stress in HepG2 cells. The results showed that the median effective dose (EC50) of the EGCG and kaempferol (6:1.5, c/c) combination was 3.4 ± 0.1 μg/mL, with a combination index (CIavg) value of 0.54, which represented a significant synergistic effect. Further experiments proved that the combined pretreatment with EGCG and kaempferol exerted protective effects by suppressing reactive oxygen species (ROS) generation, upregulating cellular antioxidant enzyme activities (superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px)) in a dose-dependent manner. The mechanism of synergistic antioxidant effects of EGCG combined with kaempferol may be due to the up-regulation of higher antioxidant enzyme activities that improve the antioxidant capacities and balance the cell oxidative stress. The synergistic antioxidant effect of EGCG and kaempferol can provide a theoretical basis for the development of formulas of functional food ingredients.
Collapse
Affiliation(s)
- Qiang Zhang
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Junkun Pan
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Hui Liu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Zhonggao Jiao
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| |
Collapse
|
3
|
Gancar M, Kurin E, Bednarikova Z, Marek J, Mucaji P, Nagy M, Gazova Z. Green tea leaf constituents inhibit the formation of lysozyme amyloid aggregates: An effect of mutual interactions. Int J Biol Macromol 2023; 242:124856. [PMID: 37178892 DOI: 10.1016/j.ijbiomac.2023.124856] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 04/06/2023] [Accepted: 05/10/2023] [Indexed: 05/15/2023]
Abstract
Amyloidoses represent a group of pathological conditions characterized by amyloid fibrils accumulating in the form of deposits in intra- or extracellular space, leading to tissue damage. The lysozyme from hen egg-white (HEWL) is often used as a universal model protein to study the anti-amyloid effects of small molecules. The in vitro anti-amyloid activity and mutual interactions of green tea leaf constituents: (-)-epigallocatechin gallate (EGCG), (-)-epicatechin (EC), gallic acid (GA), caffeine (CF) and their equimolar mixtures were studied. The inhibition of HEWL amyloid aggregation was monitored by a Thioflavin T fluorescence assay and atomic force microscopy (AFM). The interactions of the analyzed molecules with HEWL were interpreted by ATR-FTIR and protein-small ligand docking studies. EGCG was the only substance efficiently inhibiting amyloid formation (IC50 ~ 193 μM), slowing the aggregation process, reducing the number of fibrils and partially stabilizing the secondary structure of HEWL. Compared to EGCG alone, EGCG-containing mixtures displayed lower overall anti-amyloid efficacy. The decrease in efficiency results from (a) the spatial interference of GA, CF and EC with EGCG while binding to HEWL, (b) the propensity of CF to form a less active adduct with EGCG, which participates in interactions with HEWL in parallel with pure EGCG. This study confirms the importance of interaction studies, revealing the possible antagonistic behavior of molecules when combined.
Collapse
Affiliation(s)
- Miroslav Gancar
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, 040 01, Kosice, Slovakia
| | - Elena Kurin
- Faculty of Pharmacy, Comenius University Bratislava, Odbojarov 10, 832 32 Bratislava, Slovakia.
| | - Zuzana Bednarikova
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, 040 01, Kosice, Slovakia
| | - Jozef Marek
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, 040 01, Kosice, Slovakia
| | - Pavel Mucaji
- Faculty of Pharmacy, Comenius University Bratislava, Odbojarov 10, 832 32 Bratislava, Slovakia
| | - Milan Nagy
- Faculty of Pharmacy, Comenius University Bratislava, Odbojarov 10, 832 32 Bratislava, Slovakia
| | - Zuzana Gazova
- Institute of Experimental Physics Slovak Academy of Sciences, Watsonova 47, 040 01, Kosice, Slovakia.
| |
Collapse
|
4
|
Xu J, Wei Y, Huang Y, Wei X. Regulatory Effects and Molecular Mechanisms of Tea and Its Active Compounds on Nonalcoholic Fatty Liver Disease. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:3103-3124. [PMID: 36773311 DOI: 10.1021/acs.jafc.2c07702] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD), the most common chronic liver disease, is a multifactorial disease resulting from the interaction between environment, genetic background, and metabolic stress. Most treatments for NAFLD include dietary intervention and exercise show limited efficacy due to the complex mechanisms involved in NAFLD. Meanwhile, drug therapy is accompanied by serious side effects. The development of high-efficiency natural supplements is a sustainable strategy for the prevention and treatment of NAFLD. As the second most consumed beverage, tea has health benefits that have been widely recognized. Nevertheless, the intervention of tea active compounds in NAFLD has received limited attention. Tea contains abundant bioactive compounds with potential effects on NAFLD, such as catechins, flavonoids, theanine, tea pigments, and tea polysaccharides. We reviewed the intrinsic and environmental factors and pathogenic mechanisms that affect the occurrence and development of NAFLD, and summarized the influences of exercise, drugs, diet, and tea drinking on NAFLD. On this basis, we further analyzed the potential effects and molecular regulatory mechanisms of tea active compounds on NAFLD and proposed future development directions. This review hopes to provide novel insights into the development and application of tea active compounds in the prevention and treatment of NAFLD.
Collapse
Affiliation(s)
- Jia Xu
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China
- School of Environmental and Chemical Engineering, Shanghai University, 333 Nanchen Road, Shanghai 200240, PR China
| | - Yang Wei
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China
| | - Yi Huang
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China
| | - Xinlin Wei
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China
| |
Collapse
|
5
|
Chen Y, Jiang C, Yin S, Zhuang J, Zhao Y, Zhang L, Jiang X, Liu Y, Gao L, Xia T. New insights into the function of plant tannase with promiscuous acyltransferase activity. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 113:576-594. [PMID: 36534122 DOI: 10.1111/tpj.16069] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 11/25/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
Plant tannases (TAs) or tannin acyl hydrolases, a class of recently reported carboxylesterases in tannin-rich plants, are involved in the degalloylation of two important groups of secondary metabolites: flavan-3-ol gallates and hydrolyzable tannins. In this paper, we have made new progress in studying the function of tea (Camellia sinensis) (Cs) TA-it is a hydrolase with promiscuous acyltransferase activity in vitro and in vivo and promotes the synthesis of simple galloyl glucoses and flavan-3-ol gallates in plants. We studied the functions of CsTA through enzyme analysis, protein mass spectrometry, and metabolic analysis of genetically modified plants. Firstly, CsTA was found to be not only a hydrolase but also an acyltransferase. In the two-step catalytic reaction where CsTA hydrolyzes the galloylated compounds epigallocatechin-3-gallate or 1,2,3,4,6-penta-O-galloyl-β-d-glucose into their degalloylated forms, a long-lived covalently bound Ser159-linked galloyl-enzyme intermediate is also formed. Under nucleophilic attack, the galloyl group on the intermediate is transferred to the nucleophilic acyl acceptor (such as water, methanol, flavan-3-ols, and simple galloyl glucoses). Then, metabolic analysis suggested that transient overexpression of TAs in young strawberry (Fragaria × ananassa) fruits, young leaves of tea plants, and young leaves of Chinese bayberry (Myrica rubra) actually increased the total contents of simple galloyl glucoses and flavan-3-ol gallates. Overall, these findings provide new insights into the promiscuous acyltransferase activity of plant TA.
Collapse
Affiliation(s)
- Yifan Chen
- State Key Laboratory of Tea Plant Biology and Utilization/Key Laboratory of Tea Biology and Tea Processing of Ministry of Agriculture/Anhui Provincial Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, West 130 Changjiang Road, Hefei, 230036, Anhui, China
| | - Changjuan Jiang
- School of Life Science, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Shixin Yin
- State Key Laboratory of Tea Plant Biology and Utilization/Key Laboratory of Tea Biology and Tea Processing of Ministry of Agriculture/Anhui Provincial Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, West 130 Changjiang Road, Hefei, 230036, Anhui, China
| | - Juhua Zhuang
- State Key Laboratory of Tea Plant Biology and Utilization/Key Laboratory of Tea Biology and Tea Processing of Ministry of Agriculture/Anhui Provincial Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, West 130 Changjiang Road, Hefei, 230036, Anhui, China
| | - Yue Zhao
- State Key Laboratory of Tea Plant Biology and Utilization/Key Laboratory of Tea Biology and Tea Processing of Ministry of Agriculture/Anhui Provincial Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, West 130 Changjiang Road, Hefei, 230036, Anhui, China
| | - Lingjie Zhang
- School of Life Science, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Xiaolan Jiang
- State Key Laboratory of Tea Plant Biology and Utilization/Key Laboratory of Tea Biology and Tea Processing of Ministry of Agriculture/Anhui Provincial Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, West 130 Changjiang Road, Hefei, 230036, Anhui, China
| | - Yajun Liu
- School of Life Science, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Liping Gao
- School of Life Science, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Tao Xia
- State Key Laboratory of Tea Plant Biology and Utilization/Key Laboratory of Tea Biology and Tea Processing of Ministry of Agriculture/Anhui Provincial Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, West 130 Changjiang Road, Hefei, 230036, Anhui, China
| |
Collapse
|
6
|
Shi S, Wei Y, Lin X, Liang H, Zhang S, Chen Y, Dong L, Ji C. Microbial metabolic transformation and antioxidant activity evaluation of polyphenols in kombucha. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
7
|
The Catechins Profile of Green Tea Extracts Affects the Antioxidant Activity and Degradation of Catechins in DHA-Rich Oil. Antioxidants (Basel) 2022; 11:antiox11091844. [PMID: 36139917 PMCID: PMC9495874 DOI: 10.3390/antiox11091844] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 09/14/2022] [Accepted: 09/16/2022] [Indexed: 11/17/2022] Open
Abstract
This study investigated the effect of the catechins profile on the antioxidant activity of green tea extracts (GTEs) by comparing the antioxidant activity of an EGC-rich GTE (GTE1, catechin content: 58% EGC, 30.1% EGCG, 7.9% EC, and 3.9% ECG) and an EGCG-rich GTE (GTE2, catechin content: 60.6% EGCG, 17.7% EGC, 11.8% ECG, and 9.8% EC) in a DHA-rich oil. The effects of the individual catechins (EGC, EC, EGCG, and ECG) and reconstituted catechins mixtures (CatMix), prepared to contain the same amount of major catechins as in the GTEs, were also measured. All treatments (GTE1, CatMix1, GTE2, CatMix2, EGC250, EC250, EGCG250, and ECG250), each containing epistructured catechins at a concentration of 250 ppm, as well as the control (oil with no added antioxidant), were stored at 30 °C for 21 days with sampling intervals of 7 days. The antioxidant activity was assessed by measuring the peroxide value (PV) and p-anisidine value (p-AV) of oils. Changes in fatty acid content and catechins content were also monitored. Both GTEs enhanced the oxidative stability of the DHA-rich oil, but GTE1 demonstrated a stronger antioxidant activity than GTE2. No significant difference was observed between the PV of treatments with GTE1 and CatMix1 during storage, whereas the PV of oil with GTE2 was significantly higher than that with CatMix2 after 21 days. Among the individual catechins, EGC was the strongest antioxidant. Overall, the antioxidant activities of the extracts and catechins were observed in the decreasing order GTE1 ≈ EGC250 ≈ CatMix1 > GTE2 > EGCG250 ≈ CatMix2 > ECG250 > EC250. A significant change in fatty acid content was observed for the control and EC250 samples, and the catechins were most stable in GTE1-supplemented oil. Our results indicate that the EGC-rich GTE is a more potent antioxidant in DHA-rich oil than the EGCG-rich GTE.
Collapse
|
8
|
Uniat KC, Stangarlin-Fiori L, Krüger JF, Schieferdecker MEM, Rabito EI. MICROBIOLOGICAL QUALITY OF ENTERAL FORMULATIONS HANDLED AT HOME: A SYSTEMATIC REVIEW. JPEN J Parenter Enteral Nutr 2022; 46:1787-1796. [PMID: 35809193 DOI: 10.1002/jpen.2432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 06/03/2022] [Accepted: 07/01/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND Studies have shown an increase in the number of patients who use enteral nutrition at home, and the benefits of this type of nutritional care. However, little is known about the risk of bacterial contamination of enteral formulations prepared at home. Therefore, the aim of the study was to assess the microbiological quality of home-prepared enteral formulations. METHODS This study is a systematic review, registered in PROSPERO. The search for articles was carried out in databases and gray literature. Eligible studies which microbiologically analyzed homemade enteral preparations (HEP), blended enteral preparations (BEP), and commercial enteral formulas (CEF) that were prepared at home were selected. The types and quantities of microorganisms, sources of contamination in the handling area, and the consequences of contamination (signs and symptoms) were the subjects extracted from the studies. RESULTS Five studies evaluated 217 enteral formulations. It was found that 72.81% of the enteral formulations exceeded the acceptable bacterial count in the case of at least one of the analyzed microorganisms. This result corresponded to 93.58% (n=73) of the HEP; 81.96% (n=50) of the BEP; and 44.87% (n=35) of the CEF. The presence of ten different microorganisms was identified in the enteral formulations, and total coliforms and mesophilic aerobics were the microorganisms found in the greatest quantity in the samples. CONCLUSION The three types of home-prepared enteral formulations showed unsatisfactory microbiological quality, indicating poor hygiene conditions during food handling. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Kelly Cristina Uniat
- Department of Nutrition, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
| | - Lize Stangarlin-Fiori
- Department of Nutrition, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
| | - Jenifer Faria Krüger
- Department of Nutrition, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
| | | | - Estela Iraci Rabito
- Department of Nutrition, Federal University of Paraná (UFPR), Curitiba, Paraná, Brazil
| |
Collapse
|
9
|
Peng J, Wen W, Wang R, Li K, Xiao G, Li C. The galloyl moiety enhances inhibitory activity of polyphenols against adipogenic differentiation in 3T3-L1 preadipocytes. Food Funct 2022; 13:5275-5286. [PMID: 35441186 DOI: 10.1039/d1fo04179g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Previous studies have proved that the characteristic galloyl moiety in polyphenols is crucial for their biological activities. However, whether the presence of the galloyl moiety in the structure of polyphenols has a great contribution to their inhibition of adipogenic differentiation is not clear. Therefore, in this study, seven polyphenols with different galloylation degrees were chosen for exploring the contribution of the galloyl group to the lipid-lowering property of polyphenols and its molecular mechanism. Our results showed that the existence of the galloyl moiety in the structure of polyphenols was necessary for their inhibition of adipogenic differentiation, which could help to delay cells from entering the G2/M phase as well as to hinder the MCE process in the early stage of differentiation and the downstream PPARγ and C/EBPα related MAPK signaling pathway, probably via binding to IR and disturbing the α-helix in its conformation. Our finding highlighted that the existence of galloyl groups in polyphenols was crucial for their anti-adipogenic activity, and provided new insights into the mechanism by which galloylated polyphenols suppress adipocyte differentiation.
Collapse
Affiliation(s)
- Jinming Peng
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Food Science, Ministry of Education, Wuhan 430070, China. .,College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangdong Key Laboratory of Science and Technology of Lingnan Specialty Food, Guangzhou 510225, China.
| | - Wenjun Wen
- College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangdong Key Laboratory of Science and Technology of Lingnan Specialty Food, Guangzhou 510225, China.
| | - Ruifeng Wang
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Food Science, Ministry of Education, Wuhan 430070, China.
| | - Kaikai Li
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Food Science, Ministry of Education, Wuhan 430070, China.
| | - Gengsheng Xiao
- College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangdong Key Laboratory of Science and Technology of Lingnan Specialty Food, Guangzhou 510225, China.
| | - Chunmei Li
- College of Food Science and Technology, Huazhong Agricultural University, Key Laboratory of Environment Correlative Food Science, Ministry of Education, Wuhan 430070, China.
| |
Collapse
|
10
|
Influence of freezing and heating conditions on grape seed flavan-3-ol extractability, oxidation, and galloylation pattern. Sci Rep 2022; 12:3838. [PMID: 35264734 PMCID: PMC8907288 DOI: 10.1038/s41598-022-07925-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 02/28/2022] [Indexed: 11/30/2022] Open
Abstract
In cool-climate viticulture, the short growing season can influence grape seed maturation by reducing the apparent oxidation of flavan-3-ol monomers and associated increase in seed browning. A reduction in seed maturation increases the potential extraction of flavan-3-ol monomers into wine during maceration operations, heightening bitterness. Here, we carried out a 2 × 2 factorial experiment to test the ability of freezing and heating treatments to advance maturation (decrease flavan-3-ol, improve browning) of (Vitis vinifera L.) Pinot noir and Cabernet Sauvignon seeds over a 24-h incubation period. Only freezing significantly increased seed browning in both cultivars. Subsequent correlations with seed flavan-3-ol monomer concentrations suggest that freezing enhanced the oxidation of these compounds. Interestingly, natural ripening and freezing reduced galloylated flavan-3-ol monomers to a greater extent than non-galloylated ones. This study provides new information regarding the susceptibility of flavan-3-ol monomers to freezing and heating, and also suggests that freezing can advance the maturation the seeds of under-ripe red vinifera grapes.
Collapse
|
11
|
Sharma S, Jaiswal S, Duffy B, Jaiswal AK. Advances in emerging technologies for the decontamination of the food contact surfaces. Food Res Int 2022; 151:110865. [PMID: 34980401 DOI: 10.1016/j.foodres.2021.110865] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 11/13/2021] [Accepted: 12/02/2021] [Indexed: 11/18/2022]
Abstract
Foodborne pathogens could be transferred to food from food contact surfaces contaminated by poor hygiene or biofilm formation. The food processing industry has various conditions favouring microbes' adherence, such as moisture, nutrients, and the microbial inoculums obtained from the raw material. The function of the ideal antimicrobial surface is preventing initial attachment of the microbes, killing the microbes or/and removing the dead bacteria. This review article provides detail about the challenges food industries are facing with respect to food contact materials. It also summarises the merits and demerits of several sanitizing methods developed for industrial use. Furthermore, it reviews the new and emerging techniques that enhance the efficiency of reducing microbial contamination. Techniques such as surface functionalisation, high-intensity ultrasound, cold plasma technologies etc. which have high potential to be used for the decontamination of food contact surfaces are discussed. The emerging designs of antibacterial surfaces provide the opportunity to reduce or eradicate the adhesion of microorganisms. The most important purpose of these surfaces is to prevent the attachment of bacteria and to kill the bacteria that come in contact. These emerging technologies have a high potential for developing safe and inert food contact materials for the food industry.
Collapse
Affiliation(s)
- Shubham Sharma
- School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin - City Campus, Central Quad, Grangegorman, Dublin D07 ADY7, Ireland; Environmental Sustainability and Health Institute, Technological University Dublin - City Campus, Grangegorman, Dublin D07 H6K8, Ireland; Centre for Research in Engineering and Surface Technology (CREST-Gateway), FOCAS Institute, Technological University Dublin - City Campus, Kevin Street, Dublin D08 CKP1, Ireland
| | - Swarna Jaiswal
- School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin - City Campus, Central Quad, Grangegorman, Dublin D07 ADY7, Ireland; Environmental Sustainability and Health Institute, Technological University Dublin - City Campus, Grangegorman, Dublin D07 H6K8, Ireland.
| | - Brendan Duffy
- Centre for Research in Engineering and Surface Technology (CREST-Gateway), FOCAS Institute, Technological University Dublin - City Campus, Kevin Street, Dublin D08 CKP1, Ireland
| | - Amit K Jaiswal
- School of Food Science and Environmental Health, College of Sciences and Health, Technological University Dublin - City Campus, Central Quad, Grangegorman, Dublin D07 ADY7, Ireland; Environmental Sustainability and Health Institute, Technological University Dublin - City Campus, Grangegorman, Dublin D07 H6K8, Ireland
| |
Collapse
|
12
|
Passos RSFT, Barreto BG, Leite JSF, Trevisan AB, Souza CO, Silva MCA, Cavalheiro CP. Green tea extract as natural preservative in chicken patties: Effects on physicochemical, microbiological, and sensory properties. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.16224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Rafael Sepúlveda Fonsêca Trevisan Passos
- Laboratório de Inspeção e Tecnologia de Carnes e Derivados (LabCarne), Escola de Medicina Veterinária e Zootecnia (EMEVZ) Universidade Federal da Bahia (UFBA) Salvador Brazil
| | - Brenno Guimarães Barreto
- Laboratório de Inspeção e Tecnologia de Carnes e Derivados (LabCarne), Escola de Medicina Veterinária e Zootecnia (EMEVZ) Universidade Federal da Bahia (UFBA) Salvador Brazil
| | - Juliana Sant’Ana Falcão Leite
- Laboratório de Inspeção e Tecnologia de Carnes e Derivados (LabCarne), Escola de Medicina Veterinária e Zootecnia (EMEVZ) Universidade Federal da Bahia (UFBA) Salvador Brazil
| | - Adrielle Bahiense Trevisan
- Laboratório de Inspeção e Tecnologia de Carnes e Derivados (LabCarne), Escola de Medicina Veterinária e Zootecnia (EMEVZ) Universidade Federal da Bahia (UFBA) Salvador Brazil
| | | | - Mauricio Costa Alves Silva
- Laboratório de Inspeção e Tecnologia de Carnes e Derivados (LabCarne), Escola de Medicina Veterinária e Zootecnia (EMEVZ) Universidade Federal da Bahia (UFBA) Salvador Brazil
| | - Carlos Pasqualin Cavalheiro
- Laboratório de Inspeção e Tecnologia de Carnes e Derivados (LabCarne), Escola de Medicina Veterinária e Zootecnia (EMEVZ) Universidade Federal da Bahia (UFBA) Salvador Brazil
| |
Collapse
|
13
|
Phenolic-protein interactions in foods and post ingestion: Switches empowering health outcomes. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.08.033] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
14
|
Liu H, Liu M, Wang D, Wang L, Zhao Y, Liu J, Wu Y, Sun B, Zhang Y. Competitive binding of synergistic antioxidant chlorogenic acid and (−)-epigallocatechin gallate with lysozyme: Insights from multispectroscopic characterization, molecular docking and activity evaluation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117387] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
15
|
Romero C, Nardoia M, Brenes A, Arija I, Viveros A, Chamorro S. Combining Grape Byproducts to Maximise Biological Activity of Polyphenols in Chickens. Animals (Basel) 2021; 11:ani11113111. [PMID: 34827845 PMCID: PMC8614327 DOI: 10.3390/ani11113111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 10/27/2021] [Indexed: 01/21/2023] Open
Abstract
Simple Summary Grape byproducts (grape pomace, seeds and skins) contain a wide range of phenolic compounds with antioxidant properties and thus can become functional ingredients in animal feeds. The dietary inclusion of grape pomace in chicken diets has been shown to increase plasma and meat α-tocopherol content and to mitigate meat lipid oxidation. However, the separate inclusion of the main components of grape pomace (grape seeds and skins) in the diet of chickens has been less studied. In the present research work, the dietary inclusion of grape byproducts did not compromise the growth of chickens nor did it affect ileal protein digestibility. Concerning plasma and meat α-tocopherol concentrations and meat lipid oxidation, the dietary combination of grape seeds and skins provided better results than the individual inclusion of these grape byproducts. Actually, combinations with a proportion of at least 50% of grape skins enabled optimal results of meat oxidative stability. Abstract Grape seeds (GS) and grape skins (GK) are natural sources of polyphenols with antioxidant capacity. An experiment was conducted to investigate in chickens the effect of including GS and GK (40 g/kg), individually or combined in different proportions (20 g/kg GS–20 g/kg GK; 30 g/kg GS–10 g/kg GK; 10 g/kg GS–30 g/kg GK), in a corn-soybean diet on growth performance, ileal and excreta contents of total extractable polyphenols (TEP) and tannins, ileal digestibility of protein, plasma and meat α-tocopherol concentration and lipid oxidation (assessed by measuring the thiobarbituric acid reactive substances, TBARS) of stored thigh meat. Neither growth performance parameters nor ileal digestibility of protein were affected by dietary treatments. As compared with control birds, chickens fed the grape byproduct diets showed higher ileal (p < 0.001) and excreta (p < 0.001) TEP and tannins contents. Dietary inclusion of grape byproducts increased α-tocopherol concentration both in plasma (p < 0.001) and in thigh meat (p < 0.01 at 1 d; p < 0.001 at 7 d), as compared with the control group. The highest plasma α-tocopherol concentrations were reached with the 30 g/kg GS–10 g/kg GK and 20 g/kg GS–20 g/kg GK combinations. On day 1 of meat storage, no differences on meat α-tocopherol concentration were found among the grape byproducts treatments but on day 7 of storage, the 20 g/kg GS–20 g/kg GK and 10 g/kg GS–30 g/kg GK combinations led to the highest α-tocopherol concentrations in chicken thigh meat. After seven days of refrigerated storage of meat, the TBARS value was lower in chickens fed the grape byproducts diets than in control birds (1.27 vs. 2.49 mg MDA/kg, p < 0.001). Moreover, among the different grape byproduct treatments, the lowest MDA values were reached with the diets containing GK at rates from 20 to 40 g/kg. In conclusion, dietary incorporation of 40 g/kg of GS and GK added separately or combined increased the plasma and meat α-tocopherol content. Furthermore, the combinations of GS and GK with a proportion of GK of at least 50% optimised α-tocopherol concentration both in plasma and in thigh meat and mitigated lipid oxidation in 7-day stored meat.
Collapse
Affiliation(s)
- Carlos Romero
- Facultad de Ciencias y Artes, Universidad Católica Santa Teresa de Jesús de Ávila (UCAV), Calle Canteros s/n, 05005 Ávila, Spain;
| | - Maria Nardoia
- Department of Agricultural, Environmental and Food Sciences, University of Molise, 86100 Campobasso, Italy;
| | - Agustín Brenes
- Instituto de Ciencia y Tecnología de Alimentos y Nutrición (ICTAN-CSIC), José Antonio Novais, 10, Ciudad Universitaria, 28040 Madrid, Spain;
| | - Ignacio Arija
- Department of Animal Production, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain; (I.A.); (A.V.)
| | - Agustín Viveros
- Department of Animal Production, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain; (I.A.); (A.V.)
| | - Susana Chamorro
- Department of Genetics, Physiology and Microbiology (Animal Physiology Unit), Faculty of Biology, Complutense University of Madrid, 28040 Madrid, Spain
- Correspondence:
| |
Collapse
|
16
|
Hýsková V, Bělonožníková K, Šmeringaiová I, Kavan D, Ingr M, Ryšlavá H. How is the activity of shikimate dehydrogenase from the root of Petroselinum crispum (parsley) regulated and which side reactions are catalyzed? PHYTOCHEMISTRY 2021; 190:112881. [PMID: 34365296 DOI: 10.1016/j.phytochem.2021.112881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/18/2021] [Accepted: 07/06/2021] [Indexed: 06/13/2023]
Abstract
Inhibitors of the shikimate pathway are widely used as herbicides, antibiotics, and anti-infectious drugs. However, the regulation of the shikimic pathway is complex, and little is known about the feedback regulation of the shikimate dehydrogenase (SDH, EC 1.1.1.25) in plants. Thus, the aim of this study was to elucidate the kinetic mechanism of SDH purified from the root of Petroselinum crispum (parsley), to determine all possible reaction products and to identify phenylpropanoid compounds that affect its activity. Our results showed that the bisubstrate reaction catalyzed by P. crispum SDH follows a sequential ordered mechanism, except for three dead-end complexes. The main and lateral reactions of SDH were monitored by mass spectrometry, thereby detecting protocatechuic acid as a byproduct. Gallic acid was formed non-enzymatically, whereas quinate was not detected. Several polyphenolic compounds inhibited SDH activity, especially tannic, caffeic and chlorogenic acids, with IC50 0.014 mM, 0.15 mM, and 0.19 mM, respectively. The number of hydroxyl groups influenced their inhibition effect on SDH, and p-coumaric, t-ferulic, sinapic, syringic and salicylic acids were less effective SDH inhibitors. Nevertheless, one branch of the phenylpropanoid pathway may affect SDH activity through feedback regulation.
Collapse
Affiliation(s)
- Veronika Hýsková
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2, 128 40, Czech Republic.
| | - Kateřina Bělonožníková
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2, 128 40, Czech Republic.
| | - Ingrida Šmeringaiová
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2, 128 40, Czech Republic.
| | - Daniel Kavan
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2, 128 40, Czech Republic.
| | - Marek Ingr
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2, 128 40, Czech Republic; Tomas Bata University in Zlín, Faculty of Technology, Department of Physics and Materials Engineering, Nám. T.G. Masaryka 5555, 760 01, Zlín, Czech Republic.
| | - Helena Ryšlavá
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2, 128 40, Czech Republic.
| |
Collapse
|
17
|
Chen L, Cao H, Huang Q, Xiao J, Teng H. Absorption, metabolism and bioavailability of flavonoids: a review. Crit Rev Food Sci Nutr 2021; 62:7730-7742. [PMID: 34078189 DOI: 10.1080/10408398.2021.1917508] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Flavonoids are stored in various plants and widely presented in different kinds of food in variable amounts. Plant roots, stems, leaves, flowers and fruits are known to have high amounts of flavonoids. However, flavonoid aglycones are found less frequently in natural products, as it requires bioconversion through bacteria, which provide β-glucosidase to convert them. Recently, flavonoids and its metabolites were applied in the prevention and treatment of various diseases such as cancers, obesity, diabetes, hypertension, hyperlipidemia, cardiovascular diseases, neurological disorders and osteoporosis in numerous studies. This review focused on absorption, activity, metabolism, and bioavailability of flavonoids. Also authors organized and collected newly-found reports of flavonoids and their absorption barriers of flavonoids in the gastrointestinal tract, providing the latest findings and evidence from the past decade. Particularly, nanoparticles delivery systems are emphasized regarding fabrication methods and their potential benefits on flavonoids. Moreover, the potential challenges of nanoparticles as delivery system for flavonoids in the gastrointestinal tract are also discussed.
Collapse
Affiliation(s)
- Lei Chen
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, China
| | - Hui Cao
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, China
| | - Qun Huang
- School of Public Health, The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, China.,Meat Processing Key Laboratory of Sichuan Province, School of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Jianbo Xiao
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, China
| | - Hui Teng
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, China
| |
Collapse
|
18
|
Wang L, Huang X, Jing H, Ye X, Jiang C, Shao J, Ma C, Wang H. Separation of epigallocatechin gallate and epicatechin gallate from tea polyphenols by macroporous resin and crystallization. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:832-842. [PMID: 33507177 DOI: 10.1039/d0ay02118k] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Epigallocatechin gallate (EGCG) and epicatechin gallate (ECG) are the most abundant ester catechins of green tea polyphenols (GTPs) with numerous potential bioactivities, which have wide application prospects in the fields of medicine and functional foods. In this study, a new method using macroporous resin and crystallization was established to separate and purify EGCG and ECG. Two resins with high adsorption and desorption capacities for EGCG and ECG were screened through static adsorption/desorption tests, and the LX-20B resin was selected through column chromatography due to its best separation effect. Moreover, the column separation parameters of LX-20B resin (sample amount, ethanol elution concentration, elution volume, and elution flow rate) were optimized. After resin purification, the EGCG and ECG purity were 70.08 ± 2.55% and 74.97 ± 2.66%, respectively, and the recovery rates were 68.07 ± 2.43% and 74.28 ± 2.24%, respectively. After crystallization, the EGCG purity reached 95.87 ± 0.89%, with a total recovery rate of 58.66%, and the ECG purity reached 95.55 ± 1.30%, with a total recovery rate of 62.45%. The separation efficiency of the resin showed no significant change after 6 cycles. These results show the proposed method to be a simple, eco-friendly, and cost-effective separation method for the industrial separation and purification of EGCG and ECG from GTPs.
Collapse
Affiliation(s)
- Li Wang
- School of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu, 214122 China.
| | | | | | | | | | | | | | | |
Collapse
|
19
|
Chen X, Liu B, Tong R, Ding S, Wu J, Lei Q, Fang W. Improved Stability and Targeted Cytotoxicity of Epigallocatechin-3-Gallate Palmitate for Anticancer Therapy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:969-977. [PMID: 33393784 DOI: 10.1021/acs.langmuir.0c03449] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Although with high antioxidant activity, epigallocatechin-3-gallate (EGCG) was restricted by its poor chemical stability in practical applications. One of EGCG derivatives, EGCG palmitate, was synthesized with EGCG and palmitoyl chloride to overcome instability of EGCG. However, uncertainties still exist in chemical stability and cytotoxicity of EGCG palmitate, which are essential for further exploration in anticancer therapy. Our work aims to analyze the resistance of EGCG palmitate to oxidation and summarize its targeted inhibition efficiency on cancerous cells and normal cells. High-performance liquid chromatography analysis confirmed that EGCG palmitate remained stable in air and Dulbecco's modified eagle medium (DMEM) for a longer time than EGCG. Antioxidative and pro-oxidative effects of EGCG palmitate on treated cells are proposed through reactive oxygen species (ROS) detection, respectively. It reveals that pro-oxidants by H2O2 production can exert antiproliferative and proapoptotic effects on cancerous cells and stimulate autophagy, while an antioxidant relieves oxidative stress caused by superoxide as compared to normal cells. Consequently, targeted cytotoxicity is adopted by EGCG palmitate-treated cancerous cells. Results above manifest that EGCG palmitate possesses potential to serve as a promising prodrug in anticancer treatment.
Collapse
Affiliation(s)
- Xuerui Chen
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- School of Medicine, Shanghai University, Shanghai 200444, China
| | - Bingbing Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Rongliang Tong
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Shiping Ding
- The National Education Base for Basic Medical Sciences, Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Jian Wu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Qunfang Lei
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Wenjun Fang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| |
Collapse
|
20
|
Gancar M, Kurin E, Bednarikova Z, Marek J, Mucaji P, Nagy M, Gazova Z. Amyloid Aggregation of Insulin: An Interaction Study of Green Tea Constituents. Sci Rep 2020; 10:9115. [PMID: 32499589 PMCID: PMC7272432 DOI: 10.1038/s41598-020-66033-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 05/06/2020] [Indexed: 12/15/2022] Open
Abstract
Exogenous insulin, used as a therapeutic agent for diabetes, forms insoluble deposits containing amyloid fibrillar structures near the administration site. We have analyzed the in vitro anti-amyloid activity of four green tea constituents: (-)-epigallocatechin gallate (EGCG), (-)-epicatechin (EC), gallic acid (GA), caffeine (CF), and their equimolar mixtures. Regarding individually tested compounds, only EGCG inhibited the fibrillization process. The individual EC, GA, and CF molecules were ineffective. The presence of EGCG in equimolar combinations with GA, EC, or CF was required for the inhibitory activity of most mixtures. Molecular docking revealed that EGCG interacts with an essential amyloidogenic region of insulin chain B. Individually inactive GA had a potentiating effect on the activity of EGCG. In contrast, EC and CF had a negative impact on the activity of the mixtures. We have observed diverse morphology and the amount of insulin amyloid aggregates formed in the presence of studied compounds. The distinct types of amyloid aggregates created in vitro in the presence of EGCG and other green tea constituents were characterized. Results indicate that the biological activity of individual molecules is not directly applicable to the pooled samples effects prediction.
Collapse
Affiliation(s)
- Miroslav Gancar
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01, Kosice, Slovakia
| | - Elena Kurin
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University in Bratislava, Odbojarov 10, 832 32, Bratislava, Slovakia.
| | - Zuzana Bednarikova
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01, Kosice, Slovakia
| | - Jozef Marek
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01, Kosice, Slovakia
| | - Pavel Mucaji
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University in Bratislava, Odbojarov 10, 832 32, Bratislava, Slovakia
| | - Milan Nagy
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University in Bratislava, Odbojarov 10, 832 32, Bratislava, Slovakia
| | - Zuzana Gazova
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01, Kosice, Slovakia.
| |
Collapse
|
21
|
Zhou Y, Wang Q, Wang S. Effects of rosemary extract, grape seed extract and green tea polyphenol on the formation of
N
‐nitrosamines and quality of western‐style smoked sausage. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14459] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yajun Zhou
- Institute of Food Science and Engineering Jilin University Changchun China
| | - QiuYing Wang
- Institute of Food Science and Engineering Jilin University Changchun China
| | - Shujie Wang
- College of Biological and Agricultural Engineering Jilin University Changchun China
| |
Collapse
|
22
|
A Square Wave Voltammetry Study on the Antioxidant Interaction and Effect of Extraction Method for Binary Fruit Mixture Extracts. J CHEM-NY 2019. [DOI: 10.1155/2019/8706061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Square wave voltammetry (SWV) analysis was used to assess the antioxidant interactions (synergism, addition, and antagonism) of fruit mixture extracts from grape (G), lemon (L), and blueberry (B) obtained by conventional extraction, ultrasound-assisted extraction, and high hydrostatic pressure extraction. The experimental results showed antagonistic antioxidant effects in all binary mixture extracts (L-G, L-B, and G-B). In DPPH and FRAP assays, the greatest antioxidant capacity was found in the G-B mixture (108.7 and 108.8 μmol TE g−1 dry extract, respectively) obtained by high hydrostatic pressure extraction; however, there were no significant differences when measured by ultrasound-assisted extraction. For TPC and TFC assays, the greatest values were for G-B (6.67 mg GA g−1 dry extract) and L-G (1.63 mg QE g−1 dry extract), respectively. SWV experiments showed antagonistic behavior in the mixtures. Among the different ratios of the fruit mixture extracts evaluated by SWV, 1 : 1 (w/w) combination showed the greatest antagonistic antioxidant effects. SWV suggests the components of the mixture with the highest antioxidant capacity oxidize after mixing. The results indicate that the presence of natural bioactive antioxidants in fruit mixtures does not guarantee that the interactions are synergistic.
Collapse
|
23
|
Farooq S, Sehgal A. Scrutinizing antioxidant interactions between green tea and some medicinal plants commonly used as herbal teas. J Food Biochem 2019; 43:e12984. [PMID: 31489661 DOI: 10.1111/jfbc.12984] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 06/18/2019] [Accepted: 06/30/2019] [Indexed: 01/11/2023]
Abstract
Meta-analysis reports suggested that green tea (GT) consumption is associated with mild to moderate effects on major global killers. To enhance the health promoting potential of GT, one of the strategies is to combine it with traditionally used medicinal plants (Ocimum gratissimum, Cymbopogon citratus, Cymbopogon flexuosus, and Hibiscus rosa-sinensis). The aim of this investigation was to evaluate and compare the possible synergistic antioxidant interaction of binary combinations of GT with medicinal plants. Overall, GT and O. gratissimum combination showed the highest antioxidant potential and strongest synergistic interaction at EC50 . A strong correlation was found between antioxidant capacity (DPPH, ABTS, NO, and hemolysis) and total phenolic content (TPC) (except lipid peroxidation) for individual infusions, but very weak correlation was observed for GT combinations. Whereas, for both individual and binary aqueous infusions, moderate to strong correlation was observed between antioxidant parameters and FTIR-selected peak (3250-3290 cm-1 ) omitting lipid peroxidation for single infusions. PRACTICAL APPLICATIONS: The combination of GT with certain medicinal plants used as herbal teas can demonstrate synergistic interactions that may boost the health promoting potential of GT. This study provides basis for future designing and formulation of beverages containing GT combinations based on their antioxidant interactions that can potentially enhance the efficacy of GT as a chemopreventive agent. It may also promote the consumption of GT combinations that may help in realizing untapped potential of underutilized plants.
Collapse
Affiliation(s)
- Sumaya Farooq
- Department of Zoology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, India
| | - Amit Sehgal
- Department of Zoology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, India
| |
Collapse
|
24
|
Meda NR, Stevanovic T, Poubelle PE. Anhydroglucitol-core gallotannins from red maple buds modulate viability of human blood neutrophils. Toxicol In Vitro 2019; 60:76-86. [PMID: 31100377 DOI: 10.1016/j.tiv.2019.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 04/30/2019] [Accepted: 05/13/2019] [Indexed: 11/26/2022]
Abstract
Apoptosis of neutrophils is an essential checkpoint for the resolution of inflammation by shutting down the deleterious functions of these immune cells. This study investigated the role of anhydroglucitol-core gallotannins (ACGs) in apoptosis increase of human blood neutrophils treated by the hot water extract from red maple buds (RMB). Fractions obtained by liquid-liquid partitioning (ethyl acetate, butanol and water-remaining fractions) of the hot water extract from RMB were assessed for their effects on neutrophil viability by using flow cytometry. These fractions were then phytochemically analyzed to investigate the ability of major compounds to induce neutrophil apoptosis individually. Ethyl acetate and butanol fractions that contained the major ACGs ginnalin A, ginnalin 3,6 and ginnalin C stimulated the apoptosis of neutrophils. The three ACGs at 100 μM significantly increased the rate of the late apoptotic cells. When differentially combined, these ACGs have additive or antagonist effects. These effects are related to the concentrations of the constituents in the mixtures studied, especially so for ginnalin C. GinA increased FADD, phospho-Rad17, SMAC/Diablo and cytochrome C, while decreasing the anti-apoptotic protein catalase. These compounds could be useful for the development of novel therapeutic approaches that facilitate resolution of neutrophil-mediated inflammatory diseases.
Collapse
Affiliation(s)
- Naamwin R Meda
- Département des Sciences du Bois et de la Forêt, Faculté de Foresterie et Géomatique, Centre de Recherche sur les Matériaux Renouvelables (CRMR), Université Laval, 2425 rue de la Terrasse, Pavillon G-H Kruger, Québec, QC G1V 0A6, Canada; Institut des Nutraceutiques et des Aliments Fonctionnels (INAF), Université Laval, 2440 Hochelaga Blvd, Québec, QC G1V 0A6, Canada; Centre de Recherche sur les Matériaux Avancés (CERMA), Université Laval, 1065 avenue de la médecine, Québec, QC G1V 0A6, Canada; Département de Médecine, Centre de Recherche en Rhumatologie et Immunologie, Centre de Recherche du CHU de Québec, Université Laval, 2705 Boulevard Laurier, Québec, QC G1V 4G2, Canada
| | - Tatjana Stevanovic
- Département des Sciences du Bois et de la Forêt, Faculté de Foresterie et Géomatique, Centre de Recherche sur les Matériaux Renouvelables (CRMR), Université Laval, 2425 rue de la Terrasse, Pavillon G-H Kruger, Québec, QC G1V 0A6, Canada; Institut des Nutraceutiques et des Aliments Fonctionnels (INAF), Université Laval, 2440 Hochelaga Blvd, Québec, QC G1V 0A6, Canada; Centre de Recherche sur les Matériaux Avancés (CERMA), Université Laval, 1065 avenue de la médecine, Québec, QC G1V 0A6, Canada
| | - Patrice E Poubelle
- Département de Médecine, Centre de Recherche en Rhumatologie et Immunologie, Centre de Recherche du CHU de Québec, Université Laval, 2705 Boulevard Laurier, Québec, QC G1V 4G2, Canada.
| |
Collapse
|
25
|
Synergistic and antagonistic co-antioxidant effects of flavonoids with trolox or ascorbic acid in a binary mixture. J CHEM SCI 2019. [DOI: 10.1007/s12039-019-1618-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
26
|
Bellés M, Alonso V, Roncalés P, Beltrán JA. Sulfite-free lamb burger meat: antimicrobial and antioxidant properties of green tea and carvacrol. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:464-472. [PMID: 29926929 DOI: 10.1002/jsfa.9208] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/14/2018] [Accepted: 06/14/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Sulfite is commonly used to preserve lamb burger meat in the EU. Nevertheless, its consumption has been related to certain health problems, which has increased consumer demand for sulfite-free products. Natural compounds with antioxidant and antimicrobial properties may be a feasible alternative to preserve lamb burger meat. This study evaluated the antimicrobial and antioxidant properties of carvacrol, green tea and their combination in preserving lamb burger meat. Their effect was also compared with that of 400 ppm sulfite. RESULTS Lamb burger meat was mixed with different concentrations of the extracts, packaged aerobically and displayed for 8 days at 4 °C. Total polyphenols, thiobarbituric acid reactive substances, colour, and microbial and sensory analyses were performed. Both green tea and carvacrol avoided lipid oxidation even at 300 ppm, while only carvacrol, which showed a concentration-dependent action, delayed discolouration and microbial growth. Carvacrol and green tea also limited the development of oxidation odour and flavour, but the former brought about herbal odours and flavours to the meat. On the other hand, sulfite provided a higher colour stability and lower microbial counts than both natural compounds but presented a higher lipid oxidation. CONCLUSION Carvacrol seems to be a promising alternative to replace sulfite in lamb burger meat, whereas green tea should be combined with an antimicrobial agent. © 2018 Society of Chemical Industry.
Collapse
Affiliation(s)
- Marc Bellés
- Grupo de Investigación de Calidad y Tecnología de la Carne, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, Zaragoza, Spain
| | - Veronica Alonso
- Grupo de Investigación de Calidad y Tecnología de la Carne, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, Zaragoza, Spain
| | - Pedro Roncalés
- Grupo de Investigación de Calidad y Tecnología de la Carne, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, Zaragoza, Spain
| | - Jose A Beltrán
- Grupo de Investigación de Calidad y Tecnología de la Carne, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, Zaragoza, Spain
| |
Collapse
|
27
|
Phenolic compounds and antioxidant activities of tea-type infusions processed from sea buckthorn (Hippophaë rhamnoides) leaves. Food Chem 2019; 272:1-11. [DOI: 10.1016/j.foodchem.2018.08.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 08/02/2018] [Accepted: 08/03/2018] [Indexed: 01/06/2023]
|
28
|
Chen W, Zou M, Ma X, Lv R, Ding T, Liu D. Co-Encapsulation of EGCG and Quercetin in Liposomes for Optimum Antioxidant Activity. J Food Sci 2018; 84:111-120. [PMID: 30548488 DOI: 10.1111/1750-3841.14405] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 10/25/2018] [Accepted: 11/05/2018] [Indexed: 12/11/2022]
Abstract
Although different delivery systems have been developed to overcome the limits of Epigallocatechin-3-gallate (EGCG) and quercetin in food application, none have referred to their simultaneous encapsulation. In this study, these two polyphenols were successfully co-loaded into liposomes. Under the optimal conditions (lecithin-total polyphenols ratio 25:1, lecithin-cholesterol ratio 6:1, lecithin-Tween 80 ratio 8:1 and ultrasonic time 2 min), the mean size, polydispersity index (PDI) and zeta potential of liposomes were 111.10 ± 0.52 nm, 0.259 ± 0.006 and -19.83 ± 0.45 mV, with an encapsulation efficiency of 64.05 ± 1.56% and 61.73 ± 2.55% for EGCG and quercetin, respectively. After 30-day storage, an increase of 4.05% was observed in the mean size with no significant change (P ≥ 0.05) in the PDI and zeta potential. Moreover, 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay revealed a synergistic antioxidant effect of the two compounds in liposomal system. These results demonstrated that co-encapsulation of EGCG and quercetin enhances their effectiveness. PRACTICAL APPLICATION: EGCG and quercetin are natural polyphenols abound in the human diet with diverse biological activities. These two polyphenols were successfully co-encapsulated into a homogeneous and stable liposomal system. Interestingly, a synergistic antioxidant effect of the two polyphenols was observed due to co-encapsulation. This indicated that the simultaneous delivery of EGCG and quercetin was an attractive approach to improve their functionality for expanding their application in food, cosmetic and pharmaceutical industries.
Collapse
Affiliation(s)
- Weijun Chen
- College of Biosystems Engineering and Food Science, Zhejiang Univ., Hangzhou, 310058, Zhejiang, China
| | - Mingming Zou
- College of Biosystems Engineering and Food Science, Zhejiang Univ., Hangzhou, 310058, Zhejiang, China
| | - Xiaobin Ma
- College of Biosystems Engineering and Food Science, Zhejiang Univ., Hangzhou, 310058, Zhejiang, China
| | - Ruiling Lv
- College of Biosystems Engineering and Food Science, Zhejiang Univ., Hangzhou, 310058, Zhejiang, China
| | - Tian Ding
- College of Biosystems Engineering and Food Science, Zhejiang Univ., Hangzhou, 310058, Zhejiang, China.,Zhejiang Key Lab. for Agro-Food Processing, Zhejiang R&D Center for Food Technology and Equipment, Hangzhou, 310058, Zhejiang, China
| | - Donghong Liu
- College of Biosystems Engineering and Food Science, Zhejiang Univ., Hangzhou, 310058, Zhejiang, China.,Fuli Inst. of Food Science, Zhejiang Univ., Hangzhou, 310058, Zhejiang, China.,Zhejiang Key Lab. for Agro-Food Processing, Zhejiang R&D Center for Food Technology and Equipment, Hangzhou, 310058, Zhejiang, China
| |
Collapse
|
29
|
Mattoli L, Mercati V, Burico M, Bedont S, Porchia M, Tisato F, D'Aronco S, Crotti S, Agostini M, Traldi P. Experimental Evidence of the Presence of Bimolecular Caffeine/Catechin Complexes in Green Tea Extracts. JOURNAL OF NATURAL PRODUCTS 2018; 81:2338-2347. [PMID: 30372064 DOI: 10.1021/acs.jnatprod.8b00168] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A hypothesis on the peculiar pharmacological behavior of biologically active natural compounds is based on the occurrence of molecular interactions originating from the high complexity of the natural matrix, following the rules of supramolecular chemistry. In this context, some investigations were performed to establish unequivocally the presence of caffeine/catechin complexes in green tea extracts (GTEs). 1H NMR spectroscopy was utilized to compare profiles from GTEs with caffeine/catechin mixtures in different molar ratios, showing that peaks related to caffeine in GTEs are generally upfield shifted compared to those of free caffeine. On the other hand, ESIMS experiments performed on GTE, by means of precursor ion scan and neutral loss scan experiments, proved unequivocally the presence of caffeine/catechin complexes. Further investigations were performed by an LC-MS method operating at high-resolution conditions. The reconstructed ion chromatograms of the exact mass ions corresponding to caffeine/catechin species have been obtained, showing the presence of complexes of caffeine with gallate-type catechins. Furthermore, this last approach evidenced the presence of the same complex with different structures, consequently exhibiting different retention times. Both MSE and product ion MS/MS methods confirm the nature of caffeine/catechin complexes of the detected ions, showing the formation of protonated caffeine.
Collapse
Affiliation(s)
- Luisa Mattoli
- Aboca S.p.A. Società Agricola , Località Aboca, 52037 San Sepolcro, Arezzo , Italy
| | - Valentino Mercati
- Aboca S.p.A. Società Agricola , Località Aboca, 52037 San Sepolcro, Arezzo , Italy
| | - Michela Burico
- Aboca S.p.A. Società Agricola , Località Aboca, 52037 San Sepolcro, Arezzo , Italy
| | - Stella Bedont
- Aboca S.p.A. Società Agricola , Località Aboca, 52037 San Sepolcro, Arezzo , Italy
| | - Marina Porchia
- Institute of Condensed Matter Chemistry and Technologies for Energy (ICMATE), National Research Council-CNR , 35127 Padova , Italy
| | - Francesco Tisato
- Institute of Condensed Matter Chemistry and Technologies for Energy (ICMATE), National Research Council-CNR , 35127 Padova , Italy
| | - Sara D'Aronco
- Surgical Clinic, Department of Surgical, Oncological and Gastroenterological Sciences , University of Padova , 35122 Padova , Italy
| | - Sara Crotti
- Nano-Inspired Biomedicine Lab , Fondazione Istituto di Ricerca Pediatrica Città della Speranza , 35127 Padova , Italy
| | - Marco Agostini
- Surgical Clinic, Department of Surgical, Oncological and Gastroenterological Sciences , University of Padova , 35122 Padova , Italy
- Nano-Inspired Biomedicine Lab , Fondazione Istituto di Ricerca Pediatrica Città della Speranza , 35127 Padova , Italy
| | - Pietro Traldi
- Nano-Inspired Biomedicine Lab , Fondazione Istituto di Ricerca Pediatrica Città della Speranza , 35127 Padova , Italy
| |
Collapse
|
30
|
Abrahim NN, Abdul-Rahman PS, Aminudin N. The antioxidant activities, cytotoxic properties, and identification of water-soluble compounds of Ficus deltoidea leaves. PeerJ 2018; 6:e5694. [PMID: 30324012 PMCID: PMC6186405 DOI: 10.7717/peerj.5694] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 09/05/2018] [Indexed: 12/02/2022] Open
Abstract
Leaves from three varieties of Ficus deltoidea, colloquially termed small- (FDS), medium- (FDM), and big-type leaf (FDB), were subjected to water extraction. The crude extracts were fractionated using water (WF) and ethyl acetate (EAF). The phenolic and flavonoid content, antioxidant activity, and cytotoxicity of the fractions were investigated. The EAF had the highest phenolic and flavonoid content compared to the other FDS fractions. Conversely, the FDM crude extract had the highest phenolic and flavonoid content compared to the other FDM samples. Antioxidant activity was highest in the FDB crude extract. Ultra-high–performance liquid chromatography showed that two compounds, vitexin and coumaric acid, were present in the FDB crude extract. Additionally, the F. deltoidea leaves caused no signs of toxicity in a normal liver cell line. Our findings show that F. deltoidea varieties have excellent antioxidant activity with no cytotoxic effects on normal liver cells.
Collapse
Affiliation(s)
- Noor Nazirahanie Abrahim
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Puteri Shafinaz Abdul-Rahman
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.,University of Malaya Centre for Proteomics Research (UMCPR), Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Norhaniza Aminudin
- University of Malaya Centre for Proteomics Research (UMCPR), Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.,Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| |
Collapse
|
31
|
Malongane F, McGaw LJ, Mudau FN. The synergistic potential of various teas, herbs and therapeutic drugs in health improvement: a review. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:4679-4689. [PMID: 28585285 DOI: 10.1002/jsfa.8472] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 05/29/2017] [Accepted: 05/31/2017] [Indexed: 06/07/2023]
Abstract
Tea is one of the most widely consumed non-alcoholic beverages in the world next to water. It is classified as Camellia sinensis and non-Camellia sinensis (herbal teas). The common bioactive compounds found mainly in green teas are flavan-3-ols (catechins) (also called flavanols), proanthocyanidins (tannins) and flavonols. Black tea contains theaflavins and thearubigins and white tea contains l-theanine and gamma-aminobutyric acid (GABA), while herbal teas contain diverse polyphenols. Phytochemicals in tea exhibit antimicrobial, anti-diabetic and anti-cancer activities that are perceived to be helpful in managing chronic diseases linked to lifestyle. Many of these phytochemicals are reported to be biologically active when combined. Knowledge of the synergistic interactions of tea with other teas or herbs in terms of biological activities will be of benefit for therapeutic enhancement. There is evidence that various types of teas act synergistically in exhibiting health benefits to humans, improving consumer acceptance and economic value. Similar observations have been made when teas and herbs or medicinal drugs were combined. The aim of this review is to highlight potential beneficial synergies between combinations of different types of teas, tea and herbs, and tea and medicinal drugs. © 2017 Society of Chemical Industry.
Collapse
Affiliation(s)
- Florence Malongane
- Department Life and Consumer Sciences, College of Agriculture and Environmental Sciences, University of South Africa, Florida, South Africa
| | - Lyndy J McGaw
- Phytomedicine Programme, Department of Paraclinical Sciences, University of Pretoria, Pretoria, South Africa
| | - Fhatuwani N Mudau
- Department of Agriculture and Animal Health, College of Agriculture and Environmental Sciences, University of South Africa, Florida, South Africa
| |
Collapse
|
32
|
Ray S, Dutta M, Chaudhury K, De B. GC–MS based metabolite profiling and angiotensin I-converting enzyme inhibitory property of black tea extracts. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2017. [DOI: 10.1016/j.bjp.2017.05.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
33
|
Phan MAT, Paterson J, Bucknall M, Arcot J. Interactions between phytochemicals from fruits and vegetables: Effects on bioactivities and bioavailability. Crit Rev Food Sci Nutr 2017; 58:1310-1329. [DOI: 10.1080/10408398.2016.1254595] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Minh Anh Thu Phan
- Food Science and Technology, School of Chemical Engineering, UNSW Sydney, Sydney, Australia
| | - Janet Paterson
- Food Science and Technology, School of Chemical Engineering, UNSW Sydney, Sydney, Australia
| | - Martin Bucknall
- Mark Wainwright Analytical Centre, UNSW Australia, Sydney, Australia
| | - Jayashree Arcot
- Food Science and Technology, School of Chemical Engineering, UNSW Sydney, Sydney, Australia
| |
Collapse
|
34
|
Interactions between the major bioactive polyphenols of berries: effects on antioxidant properties. Eur Food Res Technol 2017. [DOI: 10.1007/s00217-017-2948-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
35
|
Effect of borage and green tea aqueous extracts on the quality of lamb leg chops displayed under retail conditions. Meat Sci 2017; 129:153-160. [DOI: 10.1016/j.meatsci.2017.03.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 02/24/2017] [Accepted: 03/04/2017] [Indexed: 02/02/2023]
|
36
|
Galloylation of polyphenols alters their biological activity. Food Chem Toxicol 2017; 105:223-240. [DOI: 10.1016/j.fct.2017.04.021] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 03/23/2017] [Accepted: 04/15/2017] [Indexed: 01/08/2023]
|
37
|
Antioxidant synergistic effects of Osmanthus fragrans flowers with green tea and their major contributed antioxidant compounds. Sci Rep 2017; 7:46501. [PMID: 28422181 PMCID: PMC5395974 DOI: 10.1038/srep46501] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 03/16/2017] [Indexed: 12/25/2022] Open
Abstract
The antioxidant synergistic effects of Osmanthus fragrans flowers with green tea were evaluated, and their major antioxidant compounds contributed to the total amount of synergy were determined. The antioxidant compounds in O. fragrans flowers with green tea were identified by LC-MS and quantified by UPLC-PDA. The synergistic antioxidant interactions between O. fragrans flowers with green tea and their antioxidant compounds were tested using the Prieto’s model after the simulated digestion. The main antioxidant compounds in O. fragrans flowers were acteoside and salideroside, whereas the main antioxidant compounds in green tea were caffeine, gallic acid, and L-epicatechin. The significant synergistic effect between O. fragrans flowers and green tea was observed and among nearly all of the combinations of their antioxidant compounds. Among the combinations, acteoside and gallic acid contributed most to the antioxidant synergy between O. fragrans flowers and green tea. However, the simulated digestion decreased this antioxidant synergy because it reduced the contents and the antioxidant capacities of their compounds, as well as the antioxidant synergy among the compounds.
Collapse
|
38
|
Ahmed NA, Radwan NM, Aboul Ezz HS, Salama NA. The antioxidant effect of Green Tea Mega EGCG against electromagnetic radiation-induced oxidative stress in the hippocampus and striatum of rats. Electromagn Biol Med 2016; 36:63-73. [PMID: 27400086 DOI: 10.1080/15368378.2016.1194292] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Electromagnetic radiation (EMR) of cellular phones may affect biological systems by increasing free radicals and changing the antioxidant defense systems of tissues, eventually leading to oxidative stress. Green tea has recently attracted significant attention due to its health benefits in a variety of disorders, ranging from cancer to weight loss. Thus, the aim of the present study was to investigate the effect of EMR (frequency 900 MHz modulated at 217 Hz, power density 0.02 mW/cm2, SAR 1.245 W/kg) on different oxidative stress parameters in the hippocampus and striatum of adult rats. This study also extends to evaluate the therapeutic effect of green tea mega EGCG on the previous parameters in animals exposed to EMR after and during EMR exposure. The experimental animals were divided into four groups: EMR-exposed animals, animals treated with green tea mega EGCG after 2 months of EMR exposure, animals treated with green tea mega EGCG during EMR exposure and control animals. EMR exposure resulted in oxidative stress in the hippocampus and striatum as evident from the disturbances in oxidant and antioxidant parameters. Co-administration of green tea mega EGCG at the beginning of EMR exposure for 2 and 3 months had more beneficial effect against EMR-induced oxidative stress than oral administration of green tea mega EGCG after 2 months of exposure. This recommends the use of green tea before any stressor to attenuate the state of oxidative stress and stimulate the antioxidant mechanism of the brain.
Collapse
Affiliation(s)
- Nawal A Ahmed
- a Zoology Department, Faculty of Science , Cairo University , Giza , Egypt
| | - Nasr M Radwan
- a Zoology Department, Faculty of Science , Cairo University , Giza , Egypt
| | - Heba S Aboul Ezz
- a Zoology Department, Faculty of Science , Cairo University , Giza , Egypt
| | - Noha A Salama
- a Zoology Department, Faculty of Science , Cairo University , Giza , Egypt
| |
Collapse
|
39
|
Chung C, Rojanasasithara T, Mutilangi W, McClements DJ. Stabilization of natural colors and nutraceuticals: Inhibition of anthocyanin degradation in model beverages using polyphenols. Food Chem 2016; 212:596-603. [PMID: 27374573 DOI: 10.1016/j.foodchem.2016.06.025] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/06/2016] [Accepted: 06/10/2016] [Indexed: 01/19/2023]
Abstract
Anthocyanins are widely used as natural colorants in foods, but they are highly susceptible to chemical degradation during storage leading to color fading. This study examined the potential of natural quillaja saponin and polyphenols (vanillin, epigallocatechin gallate, green tea extract, and protocatechualdehyde) at inhibiting color fading of anthocyanins in model beverages. The purple carrot anthocyanin (0.025%) in model beverages (citric acid, pH 3.0) containing l-ascorbic acid (0.050%) degraded with a first-order reaction rate during storage (40°C/7days in light). The addition of polyphenols (0.2%) delayed color fading, with the most notable improvement observed with green tea extract addition. The half-life for anthocyanin color fading increased from 2.9 to 6.7days with green tea extract. Fluorescence quenching measurements showed that the green tea extract contained components that interacted with anthocyanins probably through hydrophobic interactions. Overall, this study provides valuable information about enhancing the stability of anthocyanins in beverage systems using polyphenols.
Collapse
Affiliation(s)
- Cheryl Chung
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA
| | | | | | - David Julian McClements
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA; Department of Biochemistry, Faculty of Science, King Abdulaziz University, P. O. Box 80203 Jeddah 21589 Saudi Arabia.
| |
Collapse
|
40
|
Giordano ME, Ingrosso I, Schettino T, Caricato R, Giovinazzo G, Lionetto MG. Intracellular Antioxidant Activity of Grape Skin Polyphenolic Extracts in Rat Superficial Colonocytes: In situ Detection by Confocal Fluorescence Microscopy. Front Physiol 2016; 7:177. [PMID: 27303304 PMCID: PMC4882411 DOI: 10.3389/fphys.2016.00177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 05/04/2016] [Indexed: 12/31/2022] Open
Abstract
Colon is exposed to a number of prooxidant conditions and several colon diseases are associated with increased levels of reactive species. Polyphenols are the most abundant antioxidants in the diet, but to date no information is available about their absorption and potential intracellular antioxidant activity on colon epithelial cells. The work was addressed to study the intracellular antioxidant activity of red grape polyphenolic extracts on rat colon epithelium experimentally exposed to prooxidant conditions. The experimental model chosen was represented by freshly isolated colon explants, which closely resemble the functional, and morphological characteristics of the epithelium in vivo. The study was carried out by in situ confocal microscopy observation on CM-H2DCFDA charged explants exposed to H2O2 (5, 10, and 15 min). The qualitative and quantitative polyphenolic composition of the extracts as well as their in vitro oxygen radical absorbing capacity (ORAC) was determined. The incubation of the explants with the polyphenolic extracts for 1 h produced a significant decrease of the H2O2 induced fluorescence. This effect was more pronounced following 15 min H2O2 exposure with respect to 5 min and it was also more evident for extracts obtained from mature grapes, which showed an increased ORAC value and qualitative peculiarities in the polyphenolic composition. The results demonstrated the ability of red grape polyphenols to cross the plasma membrane and exert a direct intracellular antioxidant activity in surface colonocytes, inducing a protection against pro-oxidant conditions. The changes in the polyphenol composition due to ripening process was reflected in a more effective antioxidant protection.
Collapse
Affiliation(s)
- M Elena Giordano
- Department of Biological and Environmental Sciences and Technologies, University of Salento Lecce, Italy
| | - Ilaria Ingrosso
- Institute of Science of Food Production, Unit of Lecce, National Research Council of Italy Lecce, Italy
| | - Trifone Schettino
- Department of Biological and Environmental Sciences and Technologies, University of Salento Lecce, Italy
| | - Roberto Caricato
- Department of Biological and Environmental Sciences and Technologies, University of Salento Lecce, Italy
| | - Giovanna Giovinazzo
- Institute of Science of Food Production, Unit of Lecce, National Research Council of Italy Lecce, Italy
| | - M Giulia Lionetto
- Department of Biological and Environmental Sciences and Technologies, University of Salento Lecce, Italy
| |
Collapse
|