Antioxidant activity of two commercial cultivars of ginger (Zingiber officinale Roscoe): Local Shing and Nadia found in Manipur

2019 ◽  
Vol 33 (1) ◽  
pp. 100-105
Author(s):  
Vijayalaxmi Yumnam ◽  
Kananbala Sarangthem
Author(s):  
Bui Thanh Tung ◽  
Dang Kim Thu ◽  
Nguyen Thi Kim Thu ◽  
Nguyen Thanh Hai

AbstractBackgroundRoscoe has been used in traditional medicine for the treatment of neurological disorder. This study aimed to investigate the phenolic contents, antioxidant, acetylcholinesterase enzyme (AChE) inhibitory activities of different fraction ofMethodsThe roots ofResultsOur data showed that the total phenolic content of EtOAc fraction was highest equivalents to 35.2±1.4 mg quercetin/g of fraction. Our data also demonstrated that EtOAc fraction had the strongest antioxidant activity with ICConclusionsOur results suggest that the EtOAc fraction of


2021 ◽  
Vol 2 (4) ◽  
pp. 576-599
Author(s):  
Andromachi Tzani ◽  
Styliani Kalafateli ◽  
Grigorios Tatsis ◽  
Maria Bairaktari ◽  
Ioanna Kostopoulou ◽  
...  

The extraction of valuable phytochemicals from natural sources is an important and constantly evolving research area. Zingiber officinale Roscoe (ginger) contains high amounts of bioactive phytochemicals, which are desirable due to their significant properties. In this work, the ability of different natural deep eutectic solvents (NaDESs) to serve as green solvents for the preparation of high added value extracts from ginger is explored, in combination with ultrasound assisted extraction. The method was optimized by applying a response surface methodology using the NaDES Bet/La/W (1:2:2.5). Three independent variables, namely the extraction time, ultrasound power and NaDES-to-dry-ginger ratio, were investigated by employing a 17-run three-level Box–Behnken Design (BBD) in order to study the correlation between the extraction conditions and the quality of the obtained extracts. The optimum conditions (in order to achieve simultaneously maximum total phenolic content and antioxidant activity), were found to be 23.8 min extraction time, 60 Watt and NaDES/ginger 25:1 w/w. In the optimum conditions the DPPH radical scavenging ability of the extracts was found to reach IC50 = 18.16 mg/mL after 120 min, whereas the TPC was 20.10 ± 0.26 mg GAE/g of dry ginger. The green methodology was also compared with the extraction using conventional solvents. All the obtained extracts were evaluated for their antioxidant activity and their total phenolic content, while the extract derived by the optimum extraction conditions was further investigated for its ability to bind to calf thymus DNA (ctDNA).


2018 ◽  
Vol 39 (4) ◽  
pp. 1849
Author(s):  
Andréia Assunção Soares ◽  
Ezilda Jacomassi ◽  
Rosana Da Mata ◽  
Karoline Franciani Cardoso Lopes ◽  
Jessé Lahos Borges ◽  
...  

The functionality of nutraceutical foods is attributed to their bioactive compounds. These compounds are widely produced by plants, such as phenolic compounds, which have antioxidant activity and/or antimicrobial activity, acting against damage to macromolecules such as lipids, proteins, and nucleic acids. Secondary plant metabolites, including classes such as phenolic compounds, alkaloids, and terpenoids, have a wide variety of biological activities with medicinal potential. These secondary metabolites are considered bioactive compounds. The Zingiberaceae family received special attention for their large bioactive compound production. Such compounds are useful in foods as herbs, spices, flavorings, and seasonings and in the pharmaceutical and cosmetic industries as antioxidants and antimicrobials. Gingers are recognized as safe by the American Food and Drug Administration (FDA), resulting in no side effects when consumed in moderate amounts. Recent studies show that, in addition to rhizomes, the leaves and flowers of some ginger species have antioxidant activity and consequent medicinal potential. Studies have demonstrated that in vitro and in vivo research is needed to evaluate the efficacy of ginger extracts and understand their role in the modulation of biological and molecular pathways, thus enabling the development of new therapeutic strategies. Thereby, the present work aims to provide a bibliographic review on the antimicrobial activity of Zingiber officinale Roscoe and Alpinia purpurata (Vieill.) K. Schum. (Zingiberaceae), popularly known as ginger and red ginger respectively, and their potential use in the One Health initiative.


2020 ◽  
Vol 10 (2) ◽  
pp. 167-173
Author(s):  
Musyirna Rahmah Nasution ◽  
Syamira

Herbal tea is a formulation of herbal flowers, seeds, leaves, roots, and bark of various plants. It has affectiveness in energizing, healing constipation and approving immune. It has been done an experiment of antioxidant activity of herbal tea from the mixture of bitter melon (Momordica charantia L), red ginger (Zingiber officinale Roscoe) and curcuma (Curcuma xanthorrhiza Roxb). The purpose of this experiment is to make formulation of herbal tea that has strong antioxidant activity and preferably from a mixture of bitter melon (Momordica charantia L), red ginger (Zingiber officinale Roscoe) and curcuma  (Curcuma xanthorrhiza Roxb) that has been dried at a temperature of 50-60°C.The activity of antioxidant is measured by DPPH method, meanwhile organoleptic is analyzed by hedonic method. The result of the experiment from 4 formulations indicates that high antioxidant activity is FIII based on analysis one way ANOVA and Tukey test 99% true. The compositions of FIII are 1,25 g bitter melon, 0,375 g red ginger and 0,375 g curcuma has high antioxidant in 97,25%. Hedonic test indicates FIII in liking category after added 2 g palm sugar and 5mL lemon.  


2014 ◽  
Vol 13 (2) ◽  
pp. 102-107 ◽  
Author(s):  
Umi Suryanti ◽  
V.P. Bintoro ◽  
U. Atmomarson ◽  
Y.B. Pramono ◽  
A.M. Legowo

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