Collaborative analysis on difference of apple fruits flavour using electronic nose and electronic tongue was written by Zhu, Danshi;Ren, Xiaojun;Wei, Liwei;Cao, Xuehui;Ge, Yonghong;Liu, He;Li, Jianrong. And the article was included in Scientia Horticulturae (Amsterdam, Netherlands) in 2020.HPLC of Formula: 112-14-1 The following contents are mentioned in the article:
The flavor difference and other quality indicators among five popular apple varieties (′Ralls′, ′Jonagold′, ′Orin′, ′Indo′, and ′Hanfu′) were evaluated mainly using electronic nose and electronic tongue coupled with gas chromatog.-mass spectrometry (SPME/GC-MS). By linear discriminant anal. (LDA) of E-nose output data, the aroma of ′Orin′ was found to be quite different from other varieties. There were obvious differences on sourness, saltiness, and umami among the five apple varieties in E-tongue anal. For five apple varieties, 45 volatile compounds were identified, and their resp. concentrations quantified using SPME/GC-MS, and which showed that, the most abundant volatile compounds in apples were esters. By principal component anal. (PCA), hexyl butanoate, (E)-2-hexenal and α-farnesene were the important volatile compounds in apples. The hierarchical cluster anal. (HCA) according electronic nose and electronic tongue anal. and other quality indicators showed that the flavor of ′Hanfu′ was closely related to ′Jonagold′, while ′Indo′ and ′Ralls′ flavor were closely related to ′Orin′. The collaborative anal. method of combining electronic nose and electronic tongue had potential significance on flavor difference evaluation. This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1HPLC of Formula: 112-14-1).
Octyl acetate (cas: 112-14-1) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.HPLC of Formula: 112-14-1
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics