Skip to Content
MilliporeSigma
  • Promising new applications of Castanea sativa shell: nutritional composition, antioxidant activity, amino acids and vitamin E profile.

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

Food & function (2015-07-21)
Francisca Rodrigues, Joana Santos, Filipa B Pimentel, Nair Braga, Ana Palmeira-de-Oliveira, M Beatriz P P Oliveira
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.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Butylated hydroxytoluene, ≥99%, FCC, FG
Pricing and availability is not currently available.
Sigma-Aldrich
Sodium acetate solution, BioUltra, for molecular biology, ~3 M in H2O
Pricing and availability is not currently available.
Sigma-Aldrich
Sodium acetate, anhydrous, BioUltra, for luminescence, for molecular biology, ≥99.0% (NT)
Pricing and availability is not currently available.
Sigma-Aldrich
Glycerol solution, 83.5-89.5% (T)
Pricing and availability is not currently available.
Sigma-Aldrich
L-Ascorbic acid, puriss. p.a., ≥99.0% (RT)
Pricing and availability is not currently available.
Sigma-Aldrich
L-Ascorbic acid, BioUltra, ≥99.5% (RT)
Pricing and availability is not currently available.
Sigma-Aldrich
L-Ascorbic acid, puriss. p.a., ACS reagent, reag. ISO, Ph. Eur., 99.7-100.5% (oxidimetric)
Pricing and availability is not currently available.
Sigma-Aldrich
Sodium carbonate, BioUltra, anhydrous, ≥99.5% (calc. on dry substance, T)
Pricing and availability is not currently available.
Sigma-Aldrich
1,4-Dioxane, anhydrous, 99.8%, contains <=25 ppm BHT as stabilizer
Pricing and availability is not currently available.
Sigma-Aldrich
L-Ascorbic acid, ACS reagent, ≥99%
Pricing and availability is not currently available.
Sigma-Aldrich
L-Ascorbic acid, 99%
Pricing and availability is not currently available.
Sigma-Aldrich
D-Glucose-12C6, 16O6, 99.9 atom % 16O, 99.9 atom % 12C
Pricing and availability is not currently available.
Sigma-Aldrich
Aluminum chloride, anhydrous, powder, 99.99% trace metals basis
Pricing and availability is not currently available.
Sigma-Aldrich
Aluminum chloride, 99.99% trace metals basis
Pricing and availability is not currently available.
Sigma-Aldrich
Sodium carbonate decahydrate, 99.999% trace metals basis
Pricing and availability is not currently available.
Sigma-Aldrich
Sodium acetate, 99.995% trace metals basis
Pricing and availability is not currently available.
Sigma-Aldrich
Sodium carbonate, anhydrous, powder, 99.999% trace metals basis
Pricing and availability is not currently available.
Sigma-Aldrich
Sodium Acetate Anhydrous, >99%, FG
Pricing and availability is not currently available.
Sigma-Aldrich
(±)-α-Tocopherol, synthetic, ≥96% (HPLC)
Pricing and availability is not currently available.
Sigma-Aldrich
Sodium carbonate, BioXtra, ≥99.0%
Pricing and availability is not currently available.
Sigma-Aldrich
L-Ascorbic acid, powder, suitable for cell culture, γ-irradiated
Pricing and availability is not currently available.
Sigma-Aldrich
L-Ascorbic acid, meets USP testing specifications
Pricing and availability is not currently available.
Sigma-Aldrich
L-Ascorbic acid, reagent grade, crystalline
Pricing and availability is not currently available.
Sigma-Aldrich
L-Ascorbic acid, reagent grade
Pricing and availability is not currently available.
Sigma-Aldrich
Sodium acetate, anhydrous, for molecular biology, ≥99%
Pricing and availability is not currently available.
Sigma-Aldrich
Sodium acetate, meets USP testing specifications, anhydrous
Pricing and availability is not currently available.
Sigma-Aldrich
Sodium acetate, powder, BioReagent, suitable for electrophoresis, suitable for cell culture, suitable for insect cell culture, ≥99%
Pricing and availability is not currently available.
Sigma-Aldrich
Sodium acetate, BioXtra, ≥99.0%
Pricing and availability is not currently available.
Sigma-Aldrich
Aluminum chloride, anhydrous, powder, 99.999% trace metals basis
Pricing and availability is not currently available.
Sigma-Aldrich
L-Ascorbic acid, BioXtra, ≥99.0%, crystalline
Pricing and availability is not currently available.