This study delves into the method of qualitative analysis of terpenoid esters using near-infrared spectroscopy technology. Terpenoid esters are bioactive compounds widely used in the pharmaceutical and cosmetics industries. Near-infrared spectroscopy technology enables rapid and accurate component analysis without compromising the integrity of the sample, which is particularly important for valuable samples that need to be preserved intact or require subsequent analysis. This research combines machine learning techniques, such as K-Nearest Neighbors (K-NN) classifier, Random Forests algorithm, and Back Propagation Neural Networks (BPNN), to analyze terpenoid ester samples extracted from different concentrations of eluents, and compares and evaluates these algorithms. This study results show that in the test set, the prediction accuracy of the K-NN classifier is 96.154% and BPNN is 94.231%, and the Random Forest algorithm performs the best with a prediction accuracy of 100%. Additionally, this study utilizes the Random Forest algorithm to predict the characteristic spectra of terpenoid esters, demonstrating the effectiveness of feature spectrum extraction by ensuring a prediction accuracy of 100% while reducing the number of spectral features.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1063/5.0243298 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Relationship between Key Aroma Compounds and Sensory Attributes of Australian Grown Commercial Pineapple Cultivars.
J Agric Food Chem
March 2025
Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, Queensland 4072, Australia.
The intricate relationship between the chemical composition and sensory attributes of various pineapple ( var. ) cultivars was investigated using multivariate statistical analysis. Our findings revealed that high hedonic ratings for pineapples are partially attributed to their distinct flavor profiles such as tropical fruit, sweetness, coconut, and floral aroma and flavor and textural qualities like juiciness and fibrousness.
View Article and Find Full Text PDFReshaped local microbiology metabolism by raw tea according to pile fermentation in the dark tea.
J Adv Res
March 2025
Tea Research Institute, College of Agriculture & Biotechnology, Zhejiang University, Hangzhou 310058, China. Electronic address:
Introduction: Traditionally, the mechanism of dark tea quality formation has centered on microorganisms, with quality regulated by manipulating microorganisms and their fermentation environment. Nevertheless, raw teas, the natural selective medium of microbial community, was completely ignored in the formation of dark tea unique flavors.
Objectives: This study aims to uncover the previously unappreciated interactions between raw tea and microorganisms, demonstrating the significant role of raw tea in the formation of dark tea quality.
Loss of the vitamin A receptor RBPR2 in mice disrupts whole-body retinoid homeostasis and the quantitative balance regulating retinylidene protein synthesis.
FASEB J
March 2025
Department of Ophthalmology, University of Minnesota, Minneapolis, Minnesota, USA.
The distribution of stored dietary vitamin A/all-trans-retinol (ROL) from the liver throughout the body is critical for maintaining retinoid function in peripheral tissues and for generating visual pigments for photoreceptor cell function. ROL circulates in the blood bound to the retinol binding protein 4 (RBP4) as RBP4-ROL. Two membrane receptors, RBPR2 in the liver and other non-ocular tissues, and STRA6 in the eye are proposed to bind circulatory RBP4 and this mechanism facilitates the internalization of ROL.
View Article and Find Full Text PDFSynthesis of an homologous series of fatty acid xylitol monoesters and the development of their stabilized oleogels as carriers for β-carotene.
Food Res Int
April 2025
State Key Laboratory of Bioactive Molecules and Druggability Assessment, Guangdong Basic Research Center of Excellence for Natural Bioactive Molecules and Discovery of Innovative Drugs, Institute for Advanced and Applied Chemical Synthesis, College of Pharmacy, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China; Anhui Jinhe Industrial Co., Ltd., Chuzhou 239200, China. Electronic address:
Edible oleogels have recently attracted attention as new fat substitutes and as delivery systems. While thus having great potential, the oleogelators described thus far lack the necessary properties for extended deployment in a broad range of settings. Xylitol fatty acid monoesters have recently been identified as a novel class of oleogelator but little is currently known about how progression through an homologous series of congeners incorporating extended alkyl side-chains impacts on their properties.
View Article and Find Full Text PDFDynamic characterization of volatile and non-volatile profiles during Toona sinensis microgreens growth in combination with chemometrics.
Food Res Int
April 2025
College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China; Shaanxi Key Laboratory of Economic Plant Resources Development and Utilization, Yangling, Shaanxi 712100, China. Electronic address:
Toona sinensis microgreens (TSM) are popular for their aroma similar to Toona sinensis buds (TSB). This study characterized TSM across four developmental stages: sprout-appearing (M1), apical hook opening (M2), cotyledon unfolding and expansion (M3), and fully opened cotyledons (M4). Eighty-two volatile organic compounds (VOCs) were identified, with nineteen VOCs serving as key discriminators.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!