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大豆随品种、产地、出产时期及颗粒状况的不同,而所含油份有甚大之差别。据我经验所及,以净干豆含油量论,有高至22%以上,有低至16%以下的(合净豆含油量在13%至19%之间,但净豆含油量,随水份挥发物之多少,异其百分率,故能真实比较油量者,为净干豆含油量)。测定油份,一般都用速氏(soxhlet)脂肪抽出器,法虽不难,但也应视原料性质(如原料油之属于干性油与不干性油,或半干性油,及内在抗氧化物质之多少)与油份多少,略异其操作方法(含油多的东西,如芝蔴、花生等,应分二次浸抽)。大豆亦不能例外:如青皮豆,一般含磷抗氧化之磷脂较少,在脱水过程中,最宜注意氧化之防止;否则工作稍一不慎,或不当,则其量之出入,非常惊人的。若应用至于加
Soybean with the variety, origin, production period and the different particle status, which contains a very different oil. According to my experience, the net dry bean oil content, as high as 22% or less, as low as 16% (combined net bean oil content of 13% to 19%, but the net bean oil content, with Moisture volatile matter, different percentage, it can truly compare the amount of oil, net dry beans oil). Determination of oil, the general use of soxhlet fat extractor, the law is not difficult, but should also be depending on the nature of raw materials (such as raw oil are dry and dry oil, or semi-drying oil, and internal Antioxidants, how much) and how much oil, slightly different from its method of operation (oil-rich things, such as sesame, peanut, etc., should be divided into two submerged pumping). Soybeans also can not be exception: such as green beans, phospholipids generally less phosphorus antioxidant, the dehydration process, the most attention should be given to prevent oxidation; otherwise a little careless work, or improper, then the amount of access, very alarming . If applied to add