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chemical refining process

Refining Vegetable Oils: Chemical and Physical Refining - PMC

2022年1月11日  1.1. Chemical Refining of Oil. Chemical refining is the traditional method used since ancient times. It can be used for all fats and oils even when they have been slightly degraded. Each step of the refining process has specific functions for removing

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Refining Vegetable Oils: Chemical and Physical Refining

2020年10月4日  The principle of physical refining includes the following three important steps. The first step consists of subjecting the oil to phosphoric acid in the short-mix

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Chemical refining methods effectively mitigate 2-MCPD

2022年6月1日  Pilot plant refining were successfully conducted to test various chemical refining treatments. • Chemical refining can mitigate 2-, 3-MCPDE, and GE

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A Viewpoint on the Refinery of the Future:

2020年7月3日  Typical process developments in industry have directed to the new-generation refinery process for cracking of heavier feedstock to

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Optimization of degumming parameters in chemical refining process

2017年11月29日  The chemical refining process consists of the following steps: degumming, neutralization, bleaching and deodorization [6]. Degumming is the first stage

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Refining crude oil - the refining process - U.S. Energy

2023年2月22日  Petroleum refineries convert (refine) crude oil into petroleum products for use as fuels for transportation, heating, paving roads, and generating electricity and as

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Optimization of degumming parameters in chemical refining process

2017年11月29日  The chemical refining process consists of the following steps: degumming, neutralization, bleaching and deodorization [6]. Degumming is the first stage

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(PDF) Refining Vegetable Oils: Chemical and

2022年1月11日  PDF This review presents recent technologies involved in vegetable oil refining as well as quality attributes of crude oils obtained by mechanical and... Find, read and cite all the research ...

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Chemical refining metallurgy Britannica

In metallurgy: Chemical refining. An example of chemical refining is the nickel carbonyl process, in which impure nickel metal is selectively reacted with carbon monoxide gas to

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The effect of refining process on the physicochemical

2019年3月8日  Although the traditional chemical refining processes are useful to remove the majority of these unwanted components and could achieve the desired color and a

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Induced changes in olive oil subjected to various chemical refining ...

2021年6月1日  As revealed by the statistical test used, there were significant changes during refining in almost studied physicochemical properties except iodine value. Refining process removed 96% of the free fatty acids from olive oil. The neutralizing was the most efficient step for eliminating free fatty acids (FFA) in the refining procces. Indeed ...

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紫苏籽油提取工艺及其营养功效研究进展_油料作物_进行_油脂

紫苏籽油提取工艺及其营养功效研究进展. 2022-01-13 08:09. 摘要：紫苏籽油富含ω-3多不饱和脂肪酸，其中α-亚麻酸含量达到53-62%，具有抗氧化、抗癌症、降低心血管疾病等功效。. 本文从紫苏籽油的提取方法、活性物质组成营养功效等方面进行综述，旨在为紫苏籽 ...

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Effect of refining on quality and composition of

2017年8月23日  refining process which involves removing these unpleasant impurities with the least possible effect on the desired com-ponents (tocopherols, phenols, sterols) with the minimum losses of oil (Verhe et al. 2006). Chemical refining includes degumming, neutralizing, bleaching, winterizing and deodourising stages (Tasan and Demicri 2005).

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A Graph-Based Dynamic Modeling for Palm Oil Refining

2021年3月24日  There are two types of palm oil refining in Malaysia: i.e., chemical and physical. Fig-ure 3 illustrates the stages for chemical and physical refining processes of palm oil. The chemical refining process requires more stages than physical refining. Hence, the total operating costs for physical refining is expected to be smaller than chemical ...

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Effects of Degumming and Bleaching on 3-MCPD Esters

2011年6月3日  Crude palm oil (CPO) was physically refined in a 200-kg batch pilot refining plant. A study of the possible role of degumming and bleaching steps in the refining process for a possible critical role in the formation of 3-chloropropane-1,2-diol (3-MCPD) esters was evaluated. For the degumming step, different percentages of phosphoric acid

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Soybean Oil Purification - ScienceDirect

2008年1月1日  The caustic or chemical refining process produces good quality oil and is flexible in its ability to treat different oils and different qualities of individual oils. However, it does have certain disadvantages such as the neutral oil emulsified in the soapstock and the soapstock itself. Neutral oil losses are high when treating oils with a high ...

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潘风光-食品科学与工程学院 - jlu.cn

2016年4月6日  （ 9 ） Effect of the chemical refining process on composition and oxidative stability of evening primrose oil. Journal of Food Processing and Preservation. 中科院三区，IF=3.31. （ 10 ） Fengguang Pan, Xianmao Chen, Yong Pang, Enqi Yang, Suyin Wang ...

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Effect of refining on bioactive composition and oxidative

2019年2月1日  The effect of the industrial chemical refining process on the physicochemical properties, fatty acid composition, and bioactive minor components of peanut oil was studied. The results showed that the Expand. 43. Save. The Quality, Stability, and Bioactive Compound Composition of Virgin and Refined Organic Grape Seed Oil.

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Influence of refining processes on the bioactive composition,

2020年3月3日  The effect of chemical refining process on the bioactive composition, in vitro antioxidant capacity, and their correlation of perilla seed oil (PSO) were investigated. In this paper, seven samples corresponding to each step of the refining process (degumming, neutralization, bleaching, deodorization, winterization, crude, and refined oils) were studied.

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The effect of refining process on the physicochemical

RESEARCH ARTICLE The effect of refining process on the physicochemical properties and micronutrients of rapeseed oils Ying Wu1, Runsong Zhou1, Zhigao Wang1, Bo Wang1, Yijie Yang1, Xingrong Ju1,2, Rong He ID 1* 1 College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory

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Oil Refining - AOCS

Consequently, to reach the maximum oil quality all the steps of the refining process should be carried out with the minimum losses of desirable compounds. The major steps involved and the main components removed are shown in Table 1. As can be observed, alkali (or chemical) and physical refining are the standard processes used.

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Effect of refining process on physicochemical parameters, chemical ...

2019年7月1日  The effects of the chemical refining process on the minor compounds of rice bran oil and its heat stability were investigated. After 8 h of heating, about 50% and 30% of total tocopherols remained in Expand. 32. Save. Quality Changes and Tocopherols and γ-Orizanol Concentrations in Rice Bran Oil During the Refining Process.

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Recent advances in ultrasound technology applications of vegetable oil ...

2021年10月1日  Section snippets Chemical refining. Different types of plant oils may consist of different composition of undesirable compounds. Thus, these undesirable compounds must be removed efficiently through the refining process while resulting in the least possible degradation of desired bioactive compounds, like tocopherols, phytosterols, and

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A novel method for simultaneous degumming and

2021年2月1日  In order to overcome the issues (losses of neutral oil and trace nutrients, waste discharge and great energy consumption) in the traditional degumming and deacidification processes of corn oil, a new refining process using alkali aqueous solution was developed. The miscella of corn oil was used to investigate the effect of the refining

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Chemical refining of sunflower oil: effect on oil stability, total ...

2013年2月1日  The effect of chemical refining on oil stability index of sunflower oil and other quality attributes free fatty acids, total tocopherols, colour and was investigated. The results revealed that all these quality attributes are decreased during the chemical refining process, except oil stability which was decreased during neutralizing, bleaching and winterizing

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Kinetic models for degumming and bleaching of

2021年9月1日  That stage is a chemical process known as water degumming (Kanakraj and Dixit, 2016). Phosphate esters are known as hydrated gums, ... Modeling of the soybean oil bleaching and optimization of its conditions in the refining process for environmental interest. Nova Biotechnol. Chim., 17 (2018), pp. 48-57, 10.2478/nbec-2018-0005.

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Influence of the Degumming Process Parameters on the

2022年1月5日  The refining process of CPO could be conducted physically or chemically [9,10]. However, the physical refining process is preferable because of its substantial advantages over the chemical refining process, including higher oil yield, preventing excessive oil loss, minimizing the use of chemicals, and lowering the environmental

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