NDLI: Promising new applications of <i>Castanea sativa</i> shell: nutritional composition, antioxidant activity, amino acids and vitamin E profile

Content Provider	Royal Society of Chemistry (RSC)
Author	Braga, Nair Palmeira-de-Oliveira, Ana Oliveira, M. Beatriz P. P. Rodrigues, Francisca Pimentel, Filipa B. Santos, Joana
Copyright Year	2015
Abstract	The present study was aimed to assess the macronutrient composition and the amino acid and vitamin E profiles of Castanea sativa shell from different production regions of Portugal (Minho, Trás-os-Montes and Beira-Alta). The nutritional composition was similar for all samples, with a high moisture content and low fat amounts. Arginine and leucine were the predominant essential amino acids (EAA) accounting for 3.55–7.21% and 1.59–2.08%, respectively, for samples of the different production zones. All the shells presented high contents of vitamin E (481.5 mg per 100 g sample, 962.8 mg per 100 g sample and 567.5 mg per 100 g sample, respectively, for Minho, Trás-os-Montes and Beira-Alta). The predominant vitamer was γ-tocopherol (670 mg per 100 g sample for Trás-os-Montes). The antimicrobial and antioxidant activities of C. sativa shell were also determined. Trás-os-Montes extracts displayed the highest antioxidant activity (EC50 = 31.8 ± 1.3 μg mL−1 for DPPH; 8083.5 ± 164.8 μmol per mg db for FRAP). The total phenolic content (TPC) varied from 241.9 mg to 796.8 mg gallic acid equivalents (GAE) per g db sample, the highest TPC being obtained for Trás-os-Montes. The total flavonoid content (TFC) varied from 31.4 to 43.3 mg of catechin equivalents (CEQ) per g db sample. No antimicrobial activity was observed. The results showed the potentialities of C. sativa shell extracts.
Starting Page	2854
Ending Page	2860
Page Count	7
File Format	HTM / HTML PDF
ISSN	20426496
Volume Number	6
Issue Number	8
Journal	Food & Function
DOI	10.1039/c5fo00571j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	EAA FRAP TFC Castanea Portugal Alta Nutrient Acid Tocopherol Castanea sativa Minho Province Fat Arginine Leucine Antimicrobial Antioxidant EC50 DPPH Fluorescence recovery after photobleaching Flavonoid Catechin
Content Type	Text
Resource Type	Article
Subject	Medicine Food Science

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