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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2015

Autores

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

Revista

Título: Food and Function

Vol. 6

Páginas: 2854-2860

ISSN: 2042-6496

Editora: Royal Society of Chemistry

Indexação

ISI Web of Knowledge - 9 Citações

Scopus - 23 Citações

Classificação Científica

FOS: Ciências agrárias > Outras ciências agrárias

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7