Comparative Analysis of the Quality in Ripe Fruits of Cuiguan Pear from Different Regions

Abstract

The Cuiguan pear is called “June snow” and the skin is thin; the meat is crisp and juicy; the taste is thick and fresh; and the juice is rich and sweet. In this study, the volatile organic compounds and the sensory and physicochemical parameters of the Cuiguan pear from four different regions of China (Sichuan (SC), Shangdong (SD), Chongming (CM), Zhuanghang (ZH)) were assessed. The highest differences in the physicochemical parameters were observed between four regions. The volatile fingerprints of GC-IMS showed great differences in the volatile of the Cuiguan pear, which suggested that the aroma of pears could be largely impacted by origin areas. (E)-ethyl-2-hexenoate can be used to distinguish between the ‘CM’ and pears from other regions. High contents of 2-heptanone, 1-pentanol, 1-butanol, 3-methylbutanol, butyl 2-methylbutanoate, heptyl acetate and butyl acetate were observed in the ‘SD’. Dimethyl trisulfide, 6-methyl-5-hepten-2-one, 3-hydroxy-2-butanone, 1-penten-3-one, beta-pinene, γ-terpinene, propanal, (e)-2-pentenal, (e)-2-heptenal, 1-pentanol and 3-methyl-1-pentanol were primarily contained in the ‘ZH’. Principal component analysis showed that there was very good discrimination based on the information obtained from GC-IMS for four samples. These findings were in agreement with the sensory analysis. In the opinion of the respondents to the consumer test, ‘ZH’ resulted in the most appreciated sample based on the average scores of the acceptability. This study provides some reference for the development and utilization of the Cuiguan pear.

Effect of Lactobacillus rhamnosus and Saccharomyces cerevisiae on the flavour profile of sweet fermented glutinous rice (Jiu Niang)

“…For instance, Zhang et al . (2023) discovered that the high proton affinity and concentration of specific volatile compounds in Cuiguan pears could give rise to diverse signals.…”

Indium-based quantum dots trapped in solid-state matrices: a one-pot synthesis, thermoresponsive properties, and enhanced micropollutant removal

“…In the literature, indiumincorporated cage structures, such as indium-incorporated MOFs or COFs, have frequently been used in dye adsorption studies, particularly for cationic dyes. [8][9][10][11][12] Additionally, specifically modified cross-linked structures have been proposed as potential agents for removing dyes due to their insoluble, solid, and porous nature. 45 In our study, In 2 S 3 , ZnIn 2 S 4 , and Cu:Z-nIn 2 S 4 SSQDs were employed as removal agents to eliminate several different cationic and anionic dyes from their aqueous solutions.…”

“…It should be noted that particularly when it comes to treating dye-related wastewater, indium-based materials have shown great promise for adsorption research. [8][9][10][11][12] For example, indium-based metal-organic frameworks (In-MOFs) exhibited remarkable adsorption efficiency for a variety of cationic dyes, including methylene blue, azure A, and others. 8,9 Furthermore, materials such as indium-based mesoporous adsorbents exhibited better adsorption capabilities and improved efficiency for dyes like methylene blue and basic yellow-28 due to the structural incorporation of indium atoms.…”

“…This is noteworthy even though indium-based materials have often been employed in water decontamination, particularly in the removal of organic micropollutants from aqueous solutions. [8][9][10][11][12] Environmental conditions, including factors like temperature, pressure, and humidity, are critical for sustaining life, with temperature being particularly crucial due to its narrow tolerance range. 13,14 Monitoring rapid temperature fluctuations, especially in workplaces like mines, is vital for ensuring safety.…”

Transcriptome and metabolome profiling reveal the effects of hormones on current-year shoot growth in Chinese ‘Cuiguan’ pear grafted onto vigorous rootstock ‘Duli’ and dwarf rootstock ‘Quince A’

“…is one of the major fruit crops in China and accounts for 73.9% of world production, with a production of over 18.9 million tons [ 27 ]. ‘Cuiguan’ ( P. × pyrifolia ) which possesses strong flavor, few stone cells, and crisp flesh, is widely cultivated in China [ 28 , 29 ]. Currently, ‘Cuiguan’ is mainly grafted onto the vigorous rootstock in traditional orchards.…”