Optimizing Bleaching Process Parameters of Distillers Corn Oil for edible applications using a response surface methodology

IF 6 1区 农林科学 Q1 FOOD SCIENCE & TECHNOLOGY LWT - Food Science and Technology Pub Date : 2024-11-15 DOI:10.1016/j.lwt.2024.116991
Md Sanaul Huda, Preston Wilson, Niloy Chandra Sarker, Ewumbua Monono
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Abstract

The bleaching process is aimed at removing pigments, traces of metals, and residual phospholipids to improve the color, stability, and quality of the oil. Distillers corn oil (DCO) contains lots of β-carotene that are beneficial but no study has focused on optimizing the removal of pigments while minimizing the loss of β-carotene. Hence, a response surface methodology with the Box-Behnken design was used to study the effect of the process parameters during bleaching. The process parameters were dosage of bleaching clay (1 − 3%), time (5 − 25 min), and temperature (90 − 110 °C) for neutralized DCO on the laboratory scale. The optimal parameters were bleaching clay dosage of 1.2%, time of 23.2 min, and temperature of 99.1 °C. The β-carotene reduced from 0.2% to 36%, red color reduced from 27% to 88%, and yellow color reduced from 0% to 83%. The PV values of the bleached oil sample ranged from 1.7 to 9.4 meq O2/kg. The quality of DCO at the optimal bleaching level was compared with conventional edible corn oil. The models developed was used to identify the precise balance between enhancing color removal and maintaining beneficial nutritional values.
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利用响应面方法优化用于食用的蒸馏玉米油漂白工艺参数
漂白过程旨在去除色素、微量金属和残留磷脂,以改善油的颜色、稳定性和质量。蒸馏玉米油(DCO)含有大量对人体有益的 β-胡萝卜素,但还没有研究重点关注如何在去除色素的同时最大限度地减少 β-胡萝卜素的损失。因此,我们采用了方框-贝肯设计的响应面方法来研究漂白过程中工艺参数的影响。在实验室规模上,漂白土用量(1 - 3%)、时间(5 - 25 分钟)和温度(90 - 110 °C)是中和 DCO 的工艺参数。最佳参数为漂白土用量 1.2%、时间 23.2 分钟、温度 99.1 ℃。β-胡萝卜素从 0.2% 降低到 36%,红色从 27% 降低到 88%,黄色从 0% 降低到 83%。漂白油样品的 PV 值介于 1.7 至 9.4 meq O2/kg 之间。最佳漂白水平下的 DCO 质量与传统食用玉米油进行了比较。所开发的模型可用于确定提高脱色效果和保持有益营养价值之间的精确平衡。
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来源期刊
LWT - Food Science and Technology
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.
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