Promising new applications of Castanea sativa shell: nutritional composition, antioxidant activity, amino acids and vitamin E profile

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Francisca Rodrigues (Author) Other; Joana Santos (Author) Other; Filipa B Pimentel (Author) Other; Nair Braga (Author) Other; Ana Palmeira de Oliveira (Author) Other; Beatriz B P P Oliveira (Author) FFUP

Journal

Title: Food and Function

Vol. 6

Pages: 2854-2860

ISSN: 2042-6496

Publisher: Royal Society of Chemistry

Indexing

ISI Web of Knowledge - 9 Citations

Scopus - 23 Citations

Scientific classification

FOS: Agrarian Sciences > Other Agrarian Sciences

Other information

Authenticus ID: P-00G-F9S

DOI: 10.1039/c5fo00571j

Abstract (EN): 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, Tras-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, Tras-os-Montes and Beira-Alta). The predominant vitamer was gamma-tocopherol (670 mg per 100 g sample for Tras-os-Montes). The antimicrobial and antioxidant activities of C. sativa shell were also determined. Tras-os-Montes extracts displayed the highest antioxidant activity (EC50 = 31.8 +/- 1.3 mu g mL(-1) for DPPH; 8083.5 +/- 164.8 mu mol 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 Tras-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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7