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Peanut oil capable of prolonging frying life and preparation method thereof

A technology for peanut oil and peanuts, which is applied in the field of NHP concentrate to inhibit the color reversion of peanut oil by heating

Pending Publication Date: 2021-07-16
WILMAR SHANGHAI BIOTECH RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summary, the current research is mainly to remove the phospholipids (including hydratable phospholipids and non-hydratable phospholipids) in oils as much as possible. There are few related studies on the effects of properly retaining phospholipids, especially non-hydratable phospholipids, on oils.

Method used

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  • Peanut oil capable of prolonging frying life and preparation method thereof
  • Peanut oil capable of prolonging frying life and preparation method thereof
  • Peanut oil capable of prolonging frying life and preparation method thereof

Examples

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preparation example Construction

[0039] The method for preparing the NHP concentrate of the present invention includes: (1) removing the hydrated phospholipids in the leached peanut crude oil; (2) extracting the phospholipid components in the peanut oil obtained in step (1) with acetone; and (3) removing Acetone is removed to obtain the non-hydratable phospholipid concentrate.

[0040] The method for removing the hydrated phospholipids in the leached peanut crude oil is not particularly limited, and can be various methods known in the art that can remove the hydrated phospholipids in the oil. It should be understood that in the present invention, the leached peanut crude oil may still contain a small amount of hydrated phospholipids after being treated in the step of removing the hydrated phospholipids, that is, the peanut oil obtained by removing the hydrated phospholipids from the extracted peanut crude oil of the present invention is the removal of hydrated phospholipids. Peanut oil containing all or most of...

preparation example 1

[0068] Take 5L of peanuts to extract crude oil, heat to 50°C, add 0.08% oily citric acid solution (concentration: 50wt%), fully react for 30min (to convert part of NHP into HP), then add 5% of water, and hydrate for 10min , so that the hydrated phospholipids (HP) absorb water and flocculate. After cooling and filtering off the precipitate, the peanut oil with a part of HP removed is obtained. Add acetone whose mass is 10% of the mass of peanut oil to the peanut oil, dissolve and filter off the grease, take the precipitate and place it in a rotary evaporator, evaporate the acetone at 60°C to obtain the NHP concentrate. The total phosphorus content of the concentrate prepared by this method is 450ppm, and the relative content of NHP reaches 50%.

preparation example 2

[0070] Take 5L of peanut leaching crude oil, heat to 60°C, add citric acid solution (concentration: 50wt%) whose mass is 0.05% of the quality of peanut leaching crude oil, react for 15min (to convert part of NHP into HP), and then add 3% of water , hydrated for 10 minutes to make the hydrated phospholipid (HP) absorb water and flocculate. After cooling and filtering off the precipitate, the peanut oil with a part of HP removed was obtained. Add acetone with a mass of 5% of the mass of peanut oil to the peanut oil, dissolve and filter off the grease, take the precipitate and place it in a rotary evaporator, evaporate the acetone at 60°C to obtain the NHP concentrate. The total phosphorus content of the concentrate prepared by this method is 450ppm, and the relative content of NHP reaches 70%.

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Abstract

The invention provides a non-hydratable phospholipid (NHP) concentrate. The non-hydratable phospholipid (NHP) concentrate is obtained by hydrating leached peanut crude oil to remove hydratable phospholipid, removing grease with acetone, and evaporating to remove the acetone. When the NHP concentrate is added into the peanut oil, the rising of the color of the peanut oil can be delayed in the continuous frying process, and the frying quality of the peanut oil is improved.

Description

technical field [0001] The invention belongs to the field of edible oil processing, and in particular relates to an NHP concentrate and its application in inhibiting peanut oil from heating back to color. Background technique [0002] Phospholipids are medical care and nutritional supplements that have developed rapidly in recent years. They are indispensable basic substances for human cells. They can increase phosphorylcholine, choline, inositol and organic phosphorus to supplement the nutritional needs of the human body. It can promote nerve conduction, improve brain vitality, and because of its good emulsification, it can prevent cholesterol from depositing on the blood vessel wall and remove some deposits, thereby reducing serum cholesterol, reducing blood viscosity, promoting blood circulation, and preventing heart disease. The role of vascular disease. [0003] But for oils and fats, the existence of a large amount of phospholipids will lead to quality problems such a...

Claims

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Application Information

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IPC IPC(8): C07F9/10A23D9/013A23D9/04
CPCC07F9/103A23D9/04A23D9/013
Inventor 王慧云王林林张梅姜元荣易智伟
Owner WILMAR SHANGHAI BIOTECH RES & DEV CENT
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