Article
Chemistry, Applied
Luca Garcia, Stacy Deshaies, Thibaut Constantin, Francois Garcia, Cedric Saucier
Summary: This study selected 14 Syrah red wines with different initial composition and antioxidant properties and conducted three different accelerated ageing tests. The results showed high correlations between the initial phenolic composition and antioxidant properties of the samples. Partial least squares (PLS) regressions were used to establish models that can predict the AATs test results based on their different initial composition and antioxidant properties. The PLS regression models had overall very good accuracy with correlation coefficients (r2) > 0.89.
Article
Biochemistry & Molecular Biology
Douglas Vieira Thomaz, Rene Oliveira do Couto, Riccardo Goldoni, Cosimino Malitesta, Elisabetta Mazzotta, Gianluca Martino Tartaglia
Summary: This study investigates the redox properties of red wines from Apulia, Italy using semiempirical quantum chemistry calculations and electroanalytical methods. The findings show that the calculated bandgaps can be correlated with the observed signals from voltammetry, providing insights on the antioxidant appeal of the wines. Furthermore, principal component analysis demonstrates the potential use of quick voltammetric assays as fingerprinting tools.
Article
Chemistry, Applied
Sofia Tachtalidou, Nicolas Sok, Franck Denat, Laurence Noret, Philippe Schmit-Kopplin, Maria Nikolantonaki, Regis D. Gougeon
Summary: The study demonstrates the dissociation of acetaldehyde bound SO2 and its correlation with the antioxidant activity of wine. The increasing concentration of acetaldehyde sulfonate was found to enhance the overall antioxidant capacity of wine, providing new insights into the long-term protection efficiency of SO2 during bottle aging.
Article
Biochemistry & Molecular Biology
Zhijing Ye, Jinlin Shi, Roland Harrison, Richard Hider, Alaa El-Din A. Bekhit
Summary: This paragraph investigates the effects of oxidation on flavonoids, and finds that oxidation can increase the content of catechin and grape seed tannin, as well as enhance antimicrobial activity. However, it does not have a significant impact on the total phenol content of wine lees. Moreover, new compounds may be formed during the oxidation treatment, which exhibit stronger microbicidal activity.
Article
Chemistry, Multidisciplinary
Petronela Anca Onache, Alina Florea, Elisabeta-Irina Geana, Corina Teodora Ciucure, Roxana Elena Ionete, Dorin Ioan Sumedrea, Ovidiu Tita
Summary: This study characterized the bioactive characteristics and polyphenolic composition of different white and red musts and their corresponding wines. The fermentation and stabilization processes led to a decrease in bioactive characteristics but an enrichment of phenolic compounds in the wines. Clear distinctions were observed between the musts and wines, indicating different phenolic compositions. These results contribute to the characterization of polyphenolic fingerprint of the investigated white and red musts and wines.
APPLIED SCIENCES-BASEL
(2023)
Review
Biochemistry & Molecular Biology
Valentina Novak, Boris Rogelj, Vera Zupunski
Summary: ALS and FTD are severe neurodegenerative disorders with limited treatment options. Polyphenols have been found to have neuroprotective functions, potentially leading to better treatment options.
Review
Food Science & Technology
Pilar Espitia-Hernandez, Monica L. Chavez Gonzalez, Juan A. Ascacio-Valdes, Desiree Davila-Medina, Antonio Flores-Naveda, Teresinha Silva, Xochitl Ruelas Chacon, Leonardo Sepulveda
Summary: Sorghum is the fifth most produced cereal in the world, known for its high yield and resistance to drought and heat. It contains a variety of antioxidants that have multiple health benefits. However, its use in the food industry is limited due to its low nutritional value and the presence of anti-nutritional factors.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2022)
Article
Biochemistry & Molecular Biology
Kiyoshi Fukuhara, Ikuo Nakanishi, Kohei Imai, Mirei Mizuno, Ken-ichiro Matsumoto, Akiko Ohno
Summary: In diseases related to oxidative stress, accumulation of metal ions at the site of pathogenesis leads to the production of reactive oxygen species (ROS). By removing these metals and effectively scavenging the generated ROS, such diseases can be prevented and treated. A designed compound, combining a metal chelator (DTPA) with planar catechins, showed potent radical scavenging activity when coordinated with Fe3+. This compound's antioxidant activity and inhibition of ROS generation through metal coordination may provide excellent preventive and therapeutic effects against oxidative stress-related diseases.
Article
Food Science & Technology
Jiang-Feng Yuan, Zhuo-Yao Chen, Yu-Ting Lai, Zhi-Jun Qiu, Da-Hong Wang, Jun-Feng Zhao, Jian-Rui Sun, Xin Li
Summary: This study established a model wine system to investigate the mechanism of producing xanthylium cation pigments derived from (+)-catechin dimers under microwave irradiation. The results demonstrated that four xanthylium cation pigments in the visible region at 440 nm could be obtained with low power, short time, and multiple microwave treatments. The addition of iron cations and glyoxylic acid further increased the production of xanthylium cation pigments, while mannitol inhibited their formation. This research provides a theoretical basis for enhancing the color properties of wine under microwave irradiation and suggests that microwaves could improve the sensory characteristics of wine by regulating the formation of yellow pigments during wine aging.
FOOD AND BIOPROCESS TECHNOLOGY
(2022)
Review
Food Science & Technology
Nawel Benbouguerra, Ruth Hornedo-Ortega, Francois Garcia, Toni El Khawand, Cedric Saucier, Tristan Richard
Summary: Stilbenes are natural phenolic compounds synthesized by plants in response to stress. They are found in grape berries and wine, with potential anti-obesity effects. Optimized analytical methods are essential for accurate detection and quantification of stilbenes.
TRENDS IN FOOD SCIENCE & TECHNOLOGY
(2021)
Article
Plant Sciences
Yaxian Wu, Golam Jalal Ahammed, Zhengzhen Li, Yameng Wang, Qianying Wang, Mingya Fang, Yanping Zhang, Haihe Liu, Xin Li
Summary: The present study investigated the role of EGCG in melon's response to glyphosate and carbendazim treatments. It was found that EGCG application alleviated pesticide phytotoxicity by regulating pesticide metabolism and enhancing antioxidant enzyme activity. These findings provide a theoretical basis for using EGCG to attenuate pesticide phytotoxicity and improve food safety.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Biochemistry & Molecular Biology
Huixia Hu, Huimin Yong, Xiyu Yao, Dawei Yun, Jinbao Huang, Jun Liu
Summary: The study successfully functionalized cassava starch aldehyde with catechin through acid catalyzed condensation reaction, forming conjugates with high stability and strong antioxidant activity. The conjugates showed higher stability than free catechin, enhanced reducing power and radical scavenging activity, and could potentially be used as antioxidants in the food industry.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Review
Biochemistry & Molecular Biology
Buhailiqiemu Abudureheman, Xiaochun Yu, Dandan Fang, Henghui Zhang
Summary: This review summarizes the data on the enzymatic oxidation of catechins, their dimers, and thearubigins in tea.
Article
Biochemistry & Molecular Biology
Huimin Yong, Fengfeng Xu, Dawei Yun, Huixia Hu, Jun Liu
Summary: Dialdehyde starch-catechin conjugates were used to produce chitosan-based antioxidant packaging films, which exhibited improved barrier properties and higher antioxidant activity compared to plain chitosan films.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Review
Biochemistry & Molecular Biology
Xue-Ling Xu, Shou-Long Deng, Zheng-Xing Lian, Kun Yu
Summary: Ovarian cancer, a heterogeneous disease, is commonly treated with surgery and chemotherapy, but natural products like resveratrol may offer a safe alternative therapy with anticancer effects. Resveratrol, commonly found in human diet, has shown promising results in fighting ovarian cancer cells.