Effect of gamma irradiation on antiradical activity of goji berry fruits (Lycium barbarum) evaluated by EPR spectroscopy

2019 ◽  
Vol 320 (3) ◽  
pp. 569-575 ◽  
Author(s):  
Ralitsa B. Mladenova ◽  
Katerina I. Aleksieva ◽  
Iliana B. Nacheva
Author(s):  
Rabia Talay ◽  
Ümmügülsüm Erdoğan ◽  
Metin Turan

With high nutritional value, goji berry is an important fruit for human nutrition and health. Goji berry cultivation is done widely in many countries, farming has become widespread in recent years in Turkey. In study grown goji berry (Lycium barbarum L.) in Turkey are determined the physical and chemical characteristics of fruit (pH, titration acidity, dry matter content, ash content, water activity (aw) value, protein content, HMF content, total phenolic content, total sugar content, reducing sugar content, sucrose content, colour values, mineral contents, organic acid contents, amino acid contents and some plant hormone content). Goji berry fruits have pH value 5.18, titration acidity value 2.16%, dry matter content 89.40%, ash content 4.30%, water activity (aw) value 0.35, protein content 13.18%, HMF content 9.38 mg/kg, total phenolic content 9.05 mg GAE/g, total sugar content 59.26%, decreasing sugar content 57.35%, sucrose content 1.90%, L* value 40.33, a* value 22.97, b* value 33.00, C* value 40.21, H° value 55.15. In addition, the mineral content, organic acid content, amino acid content and some plant hormones of goji berry fruits were determined by analysis.


2019 ◽  
Vol 7 (2) ◽  
pp. 131-137
Author(s):  
Ira Taneva

A yoghurt was obtained with the addition of goji berry (Lycium barbarum L.) fruits. The sequence of technological operations has been established. The active acidity of the yoghurt samples was determined during coagulation and in the storage period for 20 days (1, 10 and 20 days). During storage, pH and syneresis decreases. As a result of organoleptic assessments, yogurt with a 4% addition of goji berry fruits is preferred after a control sample. The study shows that goji berries can be used in the production of yoghurt as a functional nutritional ingredient.


2021 ◽  
Vol 168 ◽  
pp. 104107
Author(s):  
Xiaofan Na ◽  
Shaolan Ma ◽  
Caixia Ma ◽  
Ziyu Liu ◽  
Pengxin Xu ◽  
...  

2020 ◽  
Vol 4 (4) ◽  
pp. 193-201
Author(s):  
Bei Liu ◽  
Qingqing Xu ◽  
Yujing Sun

Abstract Goji berry tea, a traditional herbal tea, is the main ate mode of goji berry in Asia, yet few studies in comparison with red goji berry tea and black goji berry tea are carried out. This study investigated the effects of water temperature and soak time on the colour, phytochemicals, and the antioxidant capacity [2,2-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), 2,2-diphenyl-1-picrylhydrazyl radical (DPPH), and the ferric-reducing antioxidant power (FRAP)] of two goji berry tea. A comparison of the bioactive compounds and antioxidant activities between black and red goji berry tea was conducted. Results showed that both red and black goji berry tea were rich in phytochemicals, giving high antioxidant ability. The levels of bioactive compounds and the antioxidant activity of the two goji berry tea increased as the increases in soak temperature and time. Black goji berry tea had higher phytochemicals and antioxidant property than those of red goji berry tea. Infused at 100° water for the same time, the levels of total polysaccharides (150 mg/100 ml), total polyphenols (238 mg/ml), and antioxidant capacity (550 μmol/100 ml) of black goji berry tea were 3.5, 2, and 5 times higher, respectively, in comparison with red goji berry tea. The results of this study demonstrate that hot drink of goji berry in China is a good habit and black goji berry tea may be a better choice.


2019 ◽  
Vol 257 ◽  
pp. 108660 ◽  
Author(s):  
Alessandra Cristina Pedro ◽  
María-Cortes Sánchez-Mata ◽  
María Luisa Pérez-Rodríguez ◽  
Montaña Cámara ◽  
José Luis López-Colón ◽  
...  

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