The role of carotenes in preventing oxidation during palm oil processing: Adsorption studies

被引：6

作者：

Almeida, Erislene S. ^{[1
]}

Carmona, Paula Osorio ^{[2
]}

Mendonca, Simone ^{[2
]}

Dias, Ana Cristi Basile ^{[1
]}

Castellon, Enrique Rodriguez ^{[2
]}

Cecilia, Juan Antonio ^{[4
]}

da Silva, Ivanildo Jose ^{[3
]}

Monteiro, Simone ^{[1
]}

机构：

[1] Univ Brasilia, Campus Univ Darcy Ribeiro, Brasilia, Brazil

[2] Embrapa Agroenergy, Brasilia, DF, Brazil

[3] Univ Fed Ceara, Campus Pici, Fortaleza, Brazil

[4] Univ Malaga, Dept Quim Inorgan Cristalog & Mineral, Campus Teatinos, Malaga 29071, Spain

来源：

INDUSTRIAL CROPS AND PRODUCTS | 2024年 / 216卷

关键词：

Color reversion; Diene and triene; Vegetable oils; Refining; UV-vis spectrometry; THERMAL-DEGRADATION KINETICS; BETA-CAROTENE; BLEACHING EARTH; CRUDE; EQUILIBRIUM; LIPIDS; COLOR;

D O I：

10.1016/j.indcrop.2024.118691

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This study aims to investigate the impact of carotenes on the oxidation of palm oil under conditions resembling those encountered in industrial settings. We conducted experiments to assess the oxidation of palm oil during the adsorption of carotene (bleaching) using two commercial bleaching earths (ABE and NBE), sepiolite, and two newly synthesized adsorbents (LDH and PHC). The presence of carotenoids in the bleached oil varied depending on the adsorbents' textural properties: ABE, with the highest surface area (269 m 2 /g), removed up to 97% of carotenes, while LDH, with the lowest surface area (74 m 2 /g), removed only 2%. Subsequently, we examined oxidation in bleached oil subjected to temperatures up to 210 degrees C. Remarkably, only oils bleached with ABE, NBE, and PCH-adsorbents that removed more than 85% of carotenes-exhibited pronounced peaks in oxidation spectra. Thus, our findings underscore the protective role of carotenoids in preventing oil oxidation during thermal treatment, as evidenced by the observed relationship between oxidation products and carotene concentration after adsorption.

引用

页数：8

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