Zygosaccharomyces rouxii represents the main spoilage cause of concentrated apple juice, leading to waste of products or recalls. Essential oils components derived from plants have been found to present antimicrobial activities against various microbes. However, few work has been reported about their antimicrobial activities against Z. rouxii in concentrated apple juice. In this work, reparameterized Gompertz equation was used to evaluate the antimicrobial activities of different antimicrobials to inhibit the growth of a Z. rouxii cocktail (6.3 lg colony forming units/mL) composed of six strains isolated from concentrated apple juice and two strains from honey and grape must. The obtained mathematical models presented that thymol, carvacrol and trans-cinnamaldehyde were the promising options to inhibit Z. rouxii in 30 ^oBrix apple juice, reaching a maximal decrease on yeast growth of around 99.65 ± 0.61%. Whereas other antimicrobials showed lower antimicrobial activities with a maximal growth decrease of ranging from 67.13 ± 3.62% to 13.38 ± 1.16%. Additionally, the sensorial characteristics were not affected when the antimicrobials assayed were applied at the effective concentrations in commercial apple juice product. This work provided a theoretical feasibility that thymol, carvacrol and trans-cinnamaldehyde could be applied as natural preservatives for the control of Z. rouxii-related spoilage in fruit juice industry.

Zygosaccharomyces rouxii是浓缩苹果汁变质的主要原因，导致产品浪费或召回。已经发现衍生自植物的精油组分具有针对各种微生物的抗菌活性。但是，关于浓缩苹果汁中对鲁氏梭菌的抗菌活性的报道很少。在这项工作中，使用重新参数化的Gompertz方程来评估不同抗菌素抑制Z. rouxii生长的抗菌活性。鸡尾酒（6.3 lg菌落形成单位/ mL），由六种从浓缩苹果汁中分离出的菌株和两种从蜂蜜和葡萄汁中分离出的菌株组成。得到的数学模型呈现百里酚，香芹酚和反式肉桂醛是有为的选项来抑制Z.鲁氏在30 ^Ø白利糖度苹果汁，使酵母生长的最大减少量达到约99.65±0.61％。而其他抗菌药物则显示出较低的抗菌活性，最大降低幅度为67.13±3.62％至13.38±1.16％。另外，当以有效浓度在商业苹果汁产品中使用所测定的抗菌剂时，感官特性不会受到影响。这项工作提供了理论上的可行性，即百里香酚，香芹酚和反式肉桂醛可以作为天然防腐剂用于控制果汁工业中与鲁氏。相关的腐败。