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Bioactivity and stability studies of betalain-containing extracts from beta vulgaris L.

Ahmad Fadzlillah, Nurrulhidayah and Othman, Rashidi and Mohd Hassan, Norazian and Abu Bakar, Ainaa Eliah and Noh, Nur Hidayah and Mahmad, Noraini (2019) Bioactivity and stability studies of betalain-containing extracts from beta vulgaris L. Journal of Pharmacy and Nutrition Sciences, 9 (2). pp. 81-86. ISSN 2223-3806 E-ISSN 1927-5951

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Abstract

Beta vulgaris or beetroot contained high pigment of betalains that are used as food colorants and food additives due to their health-promoting properties. The extraction of natural colorant compound from beetroot under chemical- based extraction was identified as an alternative source of commercial synthetic colorant. Beetroot is generally processed before consumption which influences the stability of betalains as well as affects the acceptability and health properties. Therefore, this study aimed to investigate the antioxidant activities of betalain-containing extracts and the influence of UV irradiation and heat on the betalain pigment at different concentrations, temperature and period of time. The impact of these factors was evaluated with spectrophotometric absorbance value on the basis of betalain chromaticity. The results of the DPPH antioxidant test revealed that the scavenging activity of betalain increasing proportional to its concentration and the highest 50% inhibition activity was recorded at 77.48%. At 3.0 g/l betalain concentration, the highest chromaticity value was recorded whereas temperature between 10 to 30°C was the most stable betalain pigment against heat stress. However continuous exposure of betalain pigment towards UV irradiation was found to cause discoloration of the samples.

Item Type: Article (Journal)
Additional Information: 7619/71433
Uncontrolled Keywords: Betalain, natural colorant, chromaticity, pigment stability, antioxidant.
Subjects: R Medicine > RS Pharmacy and materia medica
S Agriculture > S Agriculture (General)
T Technology > TP Chemical technology > TP248.13 Biotechnology
T Technology > TP Chemical technology > TP934 Paints, pigments, varnishes, etc
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Architecture and Environmental Design
Kulliyyah of Architecture and Environmental Design > Department of Landscape Architecture
Kulliyyah of Pharmacy
Kulliyyah of Pharmacy > Department of Pharmaceutical Chemistry
Depositing User: Dr rashidi othman
Date Deposited: 02 Apr 2019 09:04
Last Modified: 12 Jul 2019 11:46
URI: http://irep.iium.edu.my/id/eprint/71433

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