Catalytic Production of Glucose-Galactose Syrup from Greek Yogurt Acid Whey in a Continuous-Flow Reactor.,ChemSusChem

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Catalytic Production of Glucose-Galactose Syrup from Greek Yogurt Acid Whey in a Continuous-Flow Reactor.
ChemSusChem ( IF 7.5 ) Pub Date : 2019-12-23 , DOI: 10.1002/cssc.201902847
Mark J Lindsay ₁ , Kefeng Huang ₁ , Brent A Buchinger ₁ , Cristos T Maravelias ₁ , James A Dumesic ₁ , Scott A Rankin ₂ , George W Huber ₁

Affiliation

The hydrolysis of lactose in aqueous solutions and dairy waste streams was studied using Amberlyst 70 as a heterogeneous acid catalyst in a continuous-flow packed-bed reactor. The catalyst was stable during hydrolysis of an aqueous lactose feed but deactivated owing to mineral poisoning when the dairy waste Greek yogurt acid whey (GAW) was used as the feedstock. A catalyst deactivation model was developed and showed that the deactivation of the Amberlyst 70 catalyst was proportional to the amounts of cations, urea and amino acids flowing through the catalyst bed. The Amberlyst 70 catalyst was regenerable with an aqueous acid regeneration treatment. Based on the experimental data, a rigorous technoeconomic analysis was performed for the production of glucose-galactose syrup (GGS) via lactose hydrolysis of GAW using three different catalysts. This approach shows that the GGS produced from GAW could become a valuable revenue stream for Greek yogurt manufacturers.

中文翻译：

在连续流反应器中由希腊酸奶酸乳清催化生产葡萄糖-半乳糖糖浆。

在连续流填充床反应器中，使用Amberlyst 70作为非均相酸催化剂，研究了水溶液和乳制品废料流中乳糖的水解。该催化剂在含水乳糖进料的水解过程中是稳定的，但是当使用乳制品废希腊酸奶酸乳清（GAW）作为原料时，由于矿物中毒而失活。建立了催化剂失活模型，结果表明，Amberlyst 70催化剂的失活与流过催化剂床层的阳离子，尿素和氨基酸的量成正比。Amberlyst 70催化剂可通过含水酸再生处理进行再生。根据实验数据，对使用三种不同催化剂通过GAW的乳糖水解生产葡萄糖-半乳糖糖浆（GGS）进行了严格的技术经济分析。

更新日期：2020-01-23

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