Corolla of Roselle (Hibiscus sabdariffa L.) as acid-base indicator
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...
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, Encapsulation and Utilization of Red Pigments from Roselle (Hibiscus sabdariffa L.) as Natural Food Colourants
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 کاملPhysicochemical Properties and Oxidative Storage Stability of Milled Roselle (Hibiscus sabdariffa L.) Seeds.
Milled Roselle (Hibiscus sabdariffa L.) seeds of the UMKL cultivar were analyzed for proximate composition, water and oil absorption capacity, and the influence of storage conditions on storage stability. The storage stability was determined under four types of conditions: light/oxygen (air) (LO), light/nitrogen (LN), darkness/oxygen (air) (DO), and darkness/nitrogen (DN) while monitoring for s...
متن کاملAntioxidant Effect and Water-Holding Capacity of Roselle (Hibiscus sabdariffa L.) Seed Protein Hydrolysates
The aim of this study was to investigate the effect of in-vitro pepsin and pancreatin digestion of proteins extracted from Roselle seed on the production of bioactive peptides. Defatted Roselle seed flour was used to extract different protein fractions namely globulin, albumin and glutelin. The proteins were digested using pepsin (1 h) followed by pancreatin (1 h) in order to produce hydrolysat...
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ژورنال
عنوان ژورنال: European Journal of Chemistry
سال: 2013
ISSN: 2153-2257,2153-2249
DOI: 10.5155/eurjchem.4.1.20-24.620