Showing 5 results for Polyphenols
Arezoo Sadat Emrani, Fatemeh Mirjalili, Hooman Yekrang Safakar, Bita Forootani, Amin Salehi-Abargouei,
Volume 0, Issue 0 (2-2023)
Abstract
This article has no abstract.
Kalina Sikorska-Zimny, Wojciech Mielicki, Małgorzata Wojciechowska, Ewelina Białek, Anna Kocik, Magdalena Kozioł, Magdalena Ziarkowska,
Volume 0, Issue 0 (2-2023)
Abstract
This article has no abstract.
Eliana R Meza Miranda, Antonio Samudio, Francisco Ferrerira, Rafael Gómez, Belén Rojas, Fátima Fernandez, Rodrigo Burgos, Gabriela Cardozo, José Ayala, Ana Pérez Carvajal, Feliciano Prieg Capoteo,
Volume 8, Issue 3 (8-2023)
Abstract
Background: Autochthonous fruits such as Guavijú have beneficial health properties through their bioactive compounds and antioxidant capacity. This study aims to evaluate nutritional composition, phytochemical performance, total content of polyphenols, antioxidant capacity, and bioactive compounds of Guavijú (Eugenia pungens) fruits. Methods: Macronutrients were analyzed using Anthrona method for carbohydrates, Kjeldahl method for proteins, and Soxhlet method for total fat. Phytochemical screening was performed to detect phenols, flavonoids, saponins, alkaloids, steroids and triterpenoids, as well as leukoanthocyanidins and quinones. The total content of polyphenols was obtained using Folin-Ciocalteu method. Antioxidant capacity was determined by ORAC method, and the identification of bioactive compounds was carried out through LC-QqQ MS/MS. Results: Macronutrients were found in proportions of 33.4%, 5.5%, and 4.5% for carbohydrates, proteins, and fats, respectively. Phytochemical screening revealed the presence of phenols and triperthenoids. The total polyphenol content was 46.6 mg/g. Antioxidant capacity was 11394±705 μmol/100 g. Conclusions: The identified bioactive compounds were cyanidin, delphinidin, enotein B, quercetin, and myricitrin. The results revealed that beneficial health properties due to the content of bioactive compounds and antioxidant capacity, which constitutes a food, can prevent diseases.
Mohammad Yaghtini, Moslem Jahani, Javad Feizy, Seyyed Emad Hoseini Taheri, Hossein Estiri,
Volume 9, Issue 2 (5-2024)
Abstract
Lentils are regarded as one of the most significant rainfed legumes in the world. They provide a valuable source of minerals, vitamins, and amino acids. Methods: Proximate composition (moisture, total ash, total fat, protein, fiber, and carbohydrate), mineral content, antioxidant activity (DPPH IC50), as well as total phenolic compounds (TPC) were ascertain in the raw, germinated, and cooked samples of two cultivars of Iranian lentils. Results: Cooking and germination demonstrated a significant effect on TPC, antioxidant activity and minerals. The highest amount of phenolic compounds was detected in raw black lentils, followed by raw green and germinated lentils. The black cultivar exhibited higher proportions of K, Cu, Ca, and Zn and the treatments reduced the concentrations of mineral elements in the investigated samples. Moreover, the losses of the minerals in the cooked samples were higher than in the germinated samples. Conclusions: All three states of black lentils demonstrated higher ash, mineral, total fat, protein, crude fiber, and antioxidant capacity. Cooking and germination induced a significant reduction in the phenolic compounds and antioxidant activity. Considerable reductions were also observed in the minerals content, during cooking and germination
Mahboobe Hosseinikia, Somayeh Saboori, Neda Mousavi, Tooba Bahramfard, Nicola Veronese, Mojtaba Yousefi, Esmaeil Yousefi Rad,
Volume 9, Issue 2 (5-2024)
Abstract
Background: Non-alcoholic fatty liver disease (NAFLD) is regarded as a global health issue with increasing prevalence worldwide. Polyphenols play a pivotal role in alleviating inflammatory and oxidative stress pathways associated with the pathogenesis of NAFLD, however the literature are still scarce. Methods: This systematic review and meta-analysis was designed to investigate the association between dietary polyphenols and the risk of NAFLD with a meta-analysis approach. All observational studies in the online databases of PubMed, Scopus, Web of Science, Embase and Google Scholar up to June 2021 were searched, determining appropriate keywords, to identify relevant articles. Data were summarized using risk ratios (RRs) with 95% confidence intervals (CIs). Results: Of the total number of 4144 articles identified in the first phase of the literature search, 6 studies covering 21 arms on polyphenol intake and NAFLD risk containing 9436 participants in the case groups and 19996 participants in the control groups were included in study. The summary effect size (ES) for the risk of NAFLD, comparing the highest with lowest intakes of polyphenol, was 0.80 (95% CI: 0.77-0.83, P<0.0001, I2 = 0.0%;), indicating a significant inverse association. Conclusions: Our results proved that higher dietary intake of polyphenols can reduce the risk of NAFLD. However, due to small number of determined studies, these findings require further investigations to confirm recommendations for intensifying polyphenol intake in the general population.
