Deep processing method of oil sunflower seeds

Abstract

The invention relates to a deep processing method of oil sunflower seeds, belonging to the field of oil crop processing. The deep processing method comprises the following steps of: (1) removing impurities from the oil sunflower seeds, grading according to grain size, and separating through respective shedding to obtain sunflower seed kernels and sunflower seed shells; (2) flaking, steaming and frying the sunflower seed kernels for prepressing, and then prepressing to obtain sunflower seed kernel cakes and prepressed crude sunflower seed oil; leaching the sunflower seed kernel cakes through an organic solvent to extract oil to obtain sunflower seed kernel dregs and leached crude sunflower seed oil; screening, baking and crushing the sunflower seed shells, then leaching through an organic solvent to extract oil to obtain sunflower seed shells and leached crude sunflower seed oil; and (3) desolventizing and drying the leached sunflower seed kernel dregs and the sunflower seed shells to obtain the finished sunflower seed kernel dregs and sunflower seed shells. The content of crude fiber in the sunflower seed kernel dregs is low, the content of crude protein is high, and the feeding value is higher. The invention well solves the difficulties of kernel clamping by sunflower seed shells, low oil yield and the like, the protein content of sunflower seed kernel dregs is higher than 45%, the oil yield rate is higher than 1%, the oil resources are saved, and the treatment cost is reduced.

Description

technical field [0001] The invention relates to a method for deep processing of oil crops, in particular to a method for extracting oil from sunflower seeds and making dregs. Background technique [0002] Sunflower seed is a kind of oil crop, which is rich in nutrients, and the oil content of its seeds is as high as 26-46.45%. After oil extraction, the protein content is as high as 30-52%, among which globulin accounts for 55-60%, albumin accounts for 17-23%, gluten accounts for 11-17%, and prolamin accounts for 1-4%. The above-mentioned protein contains 17 kinds of amino acids, of which, arginine accounts for 8.6%, leucine accounts for 5.9%, valine accounts for 6.2%, phenylalanine accounts for 4.5%, threonine accounts for 3.5%, isoleucine accounts for Methionine accounts for 4.2%, and methionine accounts for 2.2%. Except for the low content of lysine, other amino acids have a good balance. The composition of amino acids is close to the amino acid pattern recommended by the...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the defects of poor quality sunflower meal in the existing whole-seed pre-pressing extraction process and low oil yield in the partial shelling and pre-pressing extraction process, and provide a kind of sunflower meal with good quality and high oil yield. The processing method of sunflower seed

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