NEWS

Oil yield refers to the amount of oil extracted by each oil plant when peanut, soybean and other oil crops extract oil. The calculation formula is: oil yield = oil yield weight ÷（ Total weight - impurity removal weight) × 100%。 The following part summarizes the characteristics and oil yield of various oil crops;

1、 Soybean

Soybean is a kind of high quality and high protein oil crop, with oil content of 15% - 26%. Oil yield: 12% - 18% according to different soybean quality in different regions (oil yield of imported soybean is higher than that of domestic soybean)

Oil yield of oil crops

soybean

2、 Rapeseed

Rapeseed (Brassica napus L.) is the only kind of oil with high oil content that can be planted all over the world. It is divided into winter rape and spring rape. In China, its planting area accounts for more than 40% of the total area of oil crops in China, with oil content of 35% - 50%. Oil yield: 30% - 45% according to different rapeseed quality

Oil yield of oil crops

rapeseed

3、 Cottonseed

Cottonseed, as the name suggests, is the seed of cotton. The oil content of the whole cottonseed is 15% - 25%, and that of the kernel is 28% - 39%,

Oil yield: 11% - 25% according to different cotton seed quality

4、 Peanuts

Originally named luohuasheng, it is native to South America. The kernel content of peanut is 65% - 75%, the oil content of peanut kernel is 40% - 51%, and the oil yield is 40% - 50% according to the quality of different places

5、 Sunflower seed

Originated in Mexico, it is divided into edible sunflower (melon seeds) and oil sunflower. Oil sunflower is mostly small black seed, the oil content of the whole seed is as high as 45% - 54%, so oil sunflower is mainly used for oil extraction. The oil yield of sunflower seed (oil sunflower) is 32% - 42% according to the quality of different places

6、 Sesame seed

Sesame, oil content 45% - 63%, known as the queen of oil; Sesame oil is one of the few edible vegetable oils without refining.

Sesame oil yield: 45% - 55% according to different quality

7、 Rice bran

Rice bran is a by-product of rice processing. It can produce 5-8 kg rice bran per 100 kg brown rice. The oil content of rice bran is 14% - 24%; Rice bran oil yield: 13% - 17% according to different quality

8、 Camellia seed

Camellia seed is the seed of Camellia (Camellia oleifera); Camellia oleifera is mainly planted in the south of China. Camellia seed with shell, kernel content 50% - 72%, camellia seed oil 30% - 40%, camellia seed oil yield: 14% - 27% according to different quality

9、 Oil palm fruit (palm fruit)

Oil palm fruit is also called palm fruit; 45% - 50% of the oil is native to Africa, but now it has spread all over the world; Palm oil is the vegetable oil with the largest production, consumption and international trade volume in the world. It is also known as the "three major vegetable oils in the world" together with soybean oil and rapeseed oil. The oil yield of crude palm oil is 20% - 22% and palm kernel oil is about 2% according to the quality of different places;

Oil yield of oil crops

9、 Walnut

Walnut, also known as walnut, Qiang peach, China is the largest walnut producing country in the world; Walnut oil yield: 45% - 55% according to the quality of different places; Walnut kernel oil yield 60-70%

10、 Olives

Olive oil, a kind of woody vegetable oil, is made from fresh olive fruit by direct cold pressing. Without heating and chemical treatment, it retains natural nutrients. Olive oil is considered to be the most suitable oil for human nutrition; Olive oil yield: 18-23% according to the quality of different places;

11、 Corn oil

Corn oil, also known as corn oil and corn germ oil, is the oil extracted from corn germ; According to the local quality, the oil yield of corn germ is about 25% - 28%

11、 Flax

Flax, also known as Jusheng, Fanggan, Youma, is suitable for growing in cool and humid climate. Flax originated in the Near East, the Mediterranean coast. In China, it is mainly distributed in Shanxi, Gansu, Ningxia, Inner Mongolia and other provinces. According to the quality of different places, the oil yield of flax was 32% ~ 38%;

The actual pressing is also related to the equipment and process used by oil crops, and the pressing process (hot pressing or cold pressing). Generally speaking, taking peanut as an example, the higher the pressing pressure, the lower the residue content, the lower the residual oil rate of dry cake, and the higher the oil yield