Optimization of Extraction of Anthocyanins from Roselle (Hibiscus sabdariffa var. sabdariffa) in Aqueous Medium
نویسندگان
چکیده
منابع مشابه
Hibiscus sabdariffa L., roselle calyx, from ethnobotany to pharmacology.
Using MEDLINE and SCOPUS databases, a review of the literature from the pioneering study of 1991 until 2010 was performed on the effects on biological models of Hibiscus sabdariffa L. roselle calyx, its extracts mainly in polar solvents, or pure components found in extracts, as well as their possible relationship to these effects. Three relevant effects on lipid metabolism, antihypertensive act...
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The present work was carried out to produce a dry powder of red colour from roselle calyces for colouring some food products using microencapsulation technique. The stability of the encapsulated pigments was investigated during storage under different water activities. The results showed that ethanol acidified with 1.5N HCl (85:15) had the greatest efficiency in extracting roselle pigments foll...
متن کاملSensory Acceptability of Novel Sorrel/Roselle (Hibiscus sabdariffa L.)
Consumers are demanding novel beverages that are healthier, convenient and have appealing consumer acceptance. The objectives of this study were to investigate the effects of adding grape polyphenols and the influence of presenting health claims on the sensory acceptability of wines. Fresh red sorrel calyces were fermented into wines. The total soluble solids of the pectinase-treated sorrel pur...
متن کاملExtraction, characterization, nutritional and functional properties of Roselle (Hibiscus sabdariffa Linn) seed proteins
Physicochemical, nutritional and functional properties of protein fractions and protein isolate (RSPI) from Roselle seed were investigated. The protein content was 91.50, 93.77, 81.55, 71.30 and 40.83% for RSPI, globulin, albumin, glutelin and prolamin, respectively. The functional properties were variable among samples. Glutelin possessed the highest water holding capacity and albumin the lowe...
متن کاملCommercial Practice of Roselle (Hibiscus sabdariffa L.) Beverage Production: Optimization of Hot Water Extraction and Sweetness Level
This study was aimed at establishing optimized conditions for hot water extraction of roselle beverage (soborodo) from its calyces as well as the degree of beverage sweetness in the commercial practice. The dried calyces/water ratios involved in the commercial practice ranged between 1:57 and 1:71 (w/v) while the sweetness level of the beverage ranged between 11.2 and 13.3 °Brix. The indices fo...
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ژورنال
عنوان ژورنال: Journal of Food Science and Technology Nepal
سال: 2013
ISSN: 1816-0727
DOI: 10.3126/jfstn.v6i0.8263