The aim of this work was to study the combined effect of ultra‐high pressure homogenization (UHPH) and β‐cyclodextrin (β‐CD) on cholesterol removal from bovine raw milk. Whole raw milk (3.87% ± 0.49% fat) was submitted to UHPH (0, 100, 200, and 300 MPa) and the addition of β‐CD (0%, 0.1%, 0.3%, and 0.6%). Cholesterol removal increased with β‐CD concentration and pressure applied. For 0.6% β‐CD and 100 MPa, cholesterol removal was 65%; the highest cholesterol removal was obtained for 0.6% β‐CD and 200–300 MPa reaching 87%–89%. Aggregation phenomena caused by UHPH (300 MPa) did not affect complex formation, whereas β‐CD binding increased above 0.3%. UHPH increased L* and reduced b* color parameters. UHPH reduced 3 log cfu/ml of total aerobic counts. Cholesterol reduced milk produced under selected conditions (200 MPa, 0.6% β‐CD) was comparable in terms of consumer acceptance to commercial pasteurized or UHT milks.

中文翻译：

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超高压均质结合β-环糊精在降低胆固醇的全脂牛奶中的作用

这项工作的目的是研究超高压均质化（UHPH）和β-环糊精（β-CD）对牛乳中胆固醇去除的综合作用。将全脂原奶（3.87％±0.49％脂肪）送入UHPH（0、100、200和300 MPa）并添加β-CD（0％，0.1％，0.3％和0.6％）。胆固醇的去除随着β-CD浓度和施加压力的增加而增加。对于0.6％的β-CD和100 MPa的胆固醇，其去除率为65％。β-CD和200-300 MPa的胆固醇去除率最高，达到87％-89％。UHPH（300 MPa）引起的聚集现象不影响复合物的形成，而β-CD结合增加了0.3％以上。UHPH增加L *并减少b*颜色参数。UHPH减少了3 log cfu / ml的总需氧量。在消费者接受度方面，在选定条件下（200 MPa，0.6％β-CD）生产的胆固醇降低牛奶与商业巴氏杀菌或UHT牛奶相当。