Physiochemical properties of cocoyam starch extracted in two media

• Autorzy: Ishiwu C. , Onoh I.M. , Nwanya P.O. , Agulanna A.C.
• Języki publikacji: EN

Abstrakty

EN

Starch was extracted (isolated) from cocoyam with the aid of water solution of oxalic acid and ammonium oxalate in 8 samples of ratios, 1:3, 1:1, 3:1, 2:3, 2:1, 1:2 and 0:0 respectively. The physiochemical properties were investigated in order to unveil its characteristics and unravel the potentials for industrial applications of the cocoyam starch. The physiochemical properties investigated includes; Amylose and Amylopectin contents, water binding capacity, particle size distribution, swelling power and solubility. The results obtained showed that swelling power and solubility of the starch were temperature dependent. The solubility was found to increase with temperature increase as the cocoyam starch showed highest solubility within the 70-90°C temperature range. The swelling power was found fluctuating between the temperatures of 25-90°C. The swelling power starch sample isolated with blending ratios of 2:1 and 1:2 were temperature dependent. The Amylose content ranges from 3.06 to 31.21%.

Słowa kluczowe

EN

taro; Colocasia esculenta; physicochemical property; oxalic acid; ammonium oxalate solution; starch; starch source; starch production

• Wydawca: -
• Czasopismo: International Letters of Natural Sciences
• Rocznik: 2017
• Tom: 64
• Opis fizyczny: p.32-39,fig.,ref.

Twórcy

autor

Ishiwu C.

• Food Science and Technology Department, Nnamdi Azikiwe University, Awka, Nigeria

autor

Onoh I.M.

• Chemical Engineering Department, Enugu State University of Science and Technology, Enugu, Nigeria

autor

Nwanya P.O.

• Chemical Engineering Department, Enugu State University of Science and Technology, Enugu, Nigeria

autor

Agulanna A.C.

• Materials and Energy Technology Department, Projects Development Institute (PRODA), Emene Industrial area, Enugu, Nigeria

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Identyfikatory

DOI

10.18052/www.scipress.com/ILNS.64.32