Effect of cold atmospheric plasma pre-treatment and ultrasound-assisted extraction on bioactive compounds and chemical quality of rice bran oil

IF 6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

LWT - Food Science and Technology Pub Date : 2025-02-01 DOI:10.1016/j.lwt.2025.117451

Sanae Mousapour Balegh , Pouya Saadati , Mohadeseh Safiaghdam , Ali Asghar Fakhari , Razie Razavi

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Abstract

Rice bran, a valuable by-product of the rice milling industry, holds significant potential for oil extraction. This study aims to investigate the extraction process and enhance the quality of rice bran oil (RBO) by evaluating the effects of cold atmospheric plasma (CP) (0, 10, 20 min) and ultrasound-assisted extraction (US) (0, 40, and 60 % intensity) for 0, 10, and 20 min at 40 °C. An increasing in CP treatment time and US intensity enhanced the extraction yield (21.66 %) and the levels of bioactive compounds. Antioxidant activity increased (94.04 %) when combined CP and US treatments applied. The highest US intensity or extended CP treatment times led to a decline (89.74 %) in antioxidant activity and an increase in oil oxidation levels. Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC) analysis revealed that CP and US better preserved the molecular structure of unsaturated fatty acids and triglycerides compared to solvent extraction. These findings suggest that the combination of 20 min of CP and 40 % US intensity was identified as the most effective condition within the scope of this study, resulting in high-quality, bioactive-rich oils with minimal oxidative degradation and better retention of the oil's bioactive-compounds.

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来源期刊

LWT - Food Science and Technology 工程技术-食品科技

CiteScore

11.80

自引率

6.70%

发文量

1724

审稿时长

65 days

期刊介绍： LWT - Food Science and Technology is an international journal that publishes innovative papers in the fields of food chemistry, biochemistry, microbiology, technology and nutrition. The work described should be innovative either in the approach or in the methods used. The significance of the results either for the science community or for the food industry must also be specified. Contributions written in English are welcomed in the form of review articles, short reviews, research papers, and research notes. Papers featuring animal trials and cell cultures are outside the scope of the journal and will not be considered for publication.