2012 ©
Journal Publication
Title of Article Phytochemicals in Capsicum oleoresin from different varieties of hot chilli peppers with their antidiabetic and antioxidant activities due to some phenolic compounds 
Date of Acceptance 11 August 2016 
     Title of Journal Ultrasonics Sonochemistry 
     Standard ISI 
     Institute of Journal elsevier 
     ISBN/ISSN 1350-4177 
     Volume xxx 
     Issue xxx 
     Month xxx
     Year of Publication 2016 
     Page xxx 
     Abstract Due to its wide use in nutritional therapy, a capsicum oleoresin extraction from hot chilli pepper was optimized using ultrasound assisted extraction. Under optimal conditions, a 0.1 g sample in 10 mL of a 20% water in methanol solution was extracted at 50 C for 20 min to remove phytochemicals consisting of oleoresin, phenolics, carotenoids, flavonoids, capsaicinoids (pungency level), reducing sugars. Antioxidant and antidiabetic activities of the crude extracts from 14 chilli pepper varieties were examined. The antioxidant and antidiabetic activities of some phenolic compounds were also tested individually. The results showed that these chilli pepper samples are a rich source of phytochemicals with antioxidant and antidiabetic activities. High antioxidant activity of the extracts was evaluated using the 2,2-diphenyl-1-picrylhydrazyl, N,N-dimethyl-p-phenylenediamine dihydrochloride, 2,20-azino-bis(3- ethylbenzothiazolin-6-sulfonic acid) and ferric ion reducing antioxidant power assays. The crude extracts had a lower level of sugars induced by the inhibitory effect of a-amylase activity. Thus, their enzymatic inhibitory effect might have resulted from a synergism among the phytochemicals concerned. Therefore, a diet with this type of food may have beneficial health effects. 
     Keyword Phytochemicals, Antidiabetic, Antioxidants, Phenolics, Chilli pepper, Ultrasound assisted extraction 
577020058-8 Mr. PHITCHAN SRICHAROEN [Main Author]
Science Doctoral Degree
Science Doctoral Degree
595020135-4 Miss NATTIDA LAMAIPHAN
Science Master's Degree

Reviewing Status มีผู้ประเมินอิสระ 
Status ตีพิมพ์แล้ว 
Level of Publication นานาชาติ 
citation true 
Part of thesis true 
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