Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Physicochemical characterization of the starch from Ethiopian potato (Plectranthus edulis): a potential pharmaceutical excipient

6th European Biopharma Congress

Anteneh Assefa, Anteneh Belete and Tsige Gebre-Mariam

Wachemo University, EthiopiaAddis Ababa University, Ethiopia

Posters & Accepted Abstracts: Clin Pharmacol Biopharm

DOI: 10.4172/2167-065X-C1-029

Abstract
Starch from the tubers of Ethiopian potato (Plectranthus edulis) (Fam. Lamiaceae) has been isolated and examined for its chemical composition, amylose content and physicochemical properties. The yield of starch was about 80.4% on dry weight basis. The proximate composition of the starch on dry weight basis was found to be 0.14% ash, 0.21% lipid, 0.43% protein, and 99.22% starch. The amylose content was 30.6%. Its true density and moisture content values were 1.47 g/ml and 11.2%, respectively. Scanning electron microscopy (SEM) of the starch granules showed characteristic morphology that was by large oblong (elliptical) with some oval-shaped granules. The starch has normal granule size distribution with a mean particle size of 36.20 μm. The DSC thermograms of P. edulis starch obtained from starch-water mixtures (1:1), exhibited higher To (69.2°C), Tp (74.3°C) and Te (83.3°C) values than those of potato starch. X-ray diffraction pattern of the starch was typical B-type with a distinctive maximum peak at 17.5o2θ. The starch possesses higher swelling power and moisture sorption pattern, but lower solubility values than those of potato starch at all temperatures studied. Considering the high yield value and some similar physico-chemical properties to those of potato starch, P. edulis (Ethiopian potato) can be explored as an alternative source of starch for various applications.
Biography

E-mail: ante2011@gmail.com

 

Top