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, 238, 153-159

Biochemical and Nutritional Characterization of Coconut (Cocos Nucifera L.) Haustorium

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Biochemical and Nutritional Characterization of Coconut (Cocos Nucifera L.) Haustorium

Arivalagan Manivannan et al. Food Chem.

Abstract

Study was conducted to determine the biochemical constituents in coconut (Cocos nucifera L.) haustorium, a spongy tissue formed during coconut germination. Results indicated that 100g of dried coconut haustorium contained 1.05±0.2% ash, 44.2±4.6% soluble sugar, 24.5±3.2% starch, 5.50±0.3% protein, 1.99±0.9% fat, 5.72±0.4% soluble dietary fibre, 20.3±1.9% insoluble dietary fibre, and 146±14.3mg phenolics. Mineral profiling showed that it contained 145±8.6, 104±9.6, 33.9±8.2, 30.9±1.9, 9.45±2.1, 0.292±0.1, 2.53±0.2 and 1.20±0.1mg of K, Mg, Ca, P, Mn, Cu, Fe and Zn, respectively. Antioxidant activity assay indicated that 100g haustorium was equivalent to 1918±173, 170±20.4, 72.8±14.7 and 860±116mg of Trolox as measured by CUPRAC, FRAP, DPPH and ABTS, respectively. Amino acid score indicated that methionine+cysteine (57.6%), phenylalanine+tyrosine (32.6%), leucine (45.7%) and isoleucine (68%) are found less in haustorium. Further studies needed in developing nutritionally balanced formulations using coconut haustorium, which will be useful for lactose intolerant children.

Keywords: Amino acid profiling; Antioxidants; Coconut haustorium; Dietary fibre; Polyphenolics; Proximates.

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