Gutiérrez Luis-Felipe, Quiñones-Segura Yolanda, Sanchez-Reinoso Zain, Díaz Diego Leonardo, Abril Jormagn Israel
Instituto de Ciencia y Tecnología de Alimentos (ICTA), Universidad Nacional de Colombia Sede Bogotá, Carrera 30 No. 45-03, Edificio 500A, Bogotá, DC 111321, Colombia.
Instituto de Ciencia y Tecnología de Alimentos (ICTA), Universidad Nacional de Colombia Sede Bogotá, Carrera 30 No. 45-03, Edificio 500A, Bogotá, DC 111321, Colombia.
Food Chem. 2017 Dec 15;237:581-587. doi: 10.1016/j.foodchem.2017.05.148. Epub 2017 May 31.
This study evaluated the physicochemical properties of oils extracted from γ-irradiated Sacha Inchi (Plukenetia volubilis L.) seeds (SIS) at four different doses (0, 1, 5 and 8kGy). Fatty acid composition, tocopherol content, FTIR spectra, density, refractive index, acidity, peroxide value (PV), p-anisidine index (p-An), oxidation induction period (IP), and color were chosen as test parameters. Overall, the irradiation treatment did not significantly affect the physicochemical properties of the Sacha Inchi oils, although slight increases were found in the PV and p-An, as the irradiation dose increased. γ-Irradiation led to a decrease in the concentration of γ- and δ-tocopherol, as well as in the IP. However, according to the FTIR analyses, the functional groups of the oils were not significantly affected by the γ-irradiation. These results suggest that γ-irradiation at 1-5kGy, might be recommended as a suitable eco-friendly technology for the preservation of SIS used for oil production.
本研究评估了从经四种不同剂量（0、1、5和8千戈瑞）γ射线辐照的美藤果（Plukenetia volubilis L.）种子中提取的油（SIS）的理化性质。选择脂肪酸组成、生育酚含量、傅里叶变换红外光谱（FTIR）、密度、折射率、酸度、过氧化值（PV）、对茴香胺值（p-An）、氧化诱导期（IP）和颜色作为测试参数。总体而言，辐照处理对美藤果油的理化性质没有显著影响，尽管随着辐照剂量的增加，PV和p-An略有增加。γ射线辐照导致γ-和δ-生育酚浓度以及IP降低。然而，根据FTIR分析，油的官能团并未受到γ射线辐照的显著影响。这些结果表明，1-5千戈瑞的γ射线辐照可能被推荐为一种适用于保存用于生产油的美藤果种子的环保技术。
