Results 31 to 40 of about 519,748 (233)

Identification of Volatile Compounds of Oil Palm Flower (Elaeis guineensis Jacq.) with Gas Chromatography and Mass Spectrometry Based on the Difference in Time

open access: yesIndonesian Journal of Chemistry, 2023
The pollination process in oil palm is assisted by the insect Elaeidobius kamerunicus, which occurs when male and female flowers bloom producing volatile compounds that act as attractants.
Fizrul Indra Lubis   +3 more
doaj   +1 more source

A method to detect baseline emission and plant damage induced volatile emission in a greenhouse [PDF]

open access: yes, 2008
The objective of this research was to ascertain if 1) baseline emission and 2) damage induced emission of volatile plant substances could be detected under greenhouse conditions.
Bouwmeester, H.J.   +5 more
core   +2 more sources

Volatile compounds present in traditional meat products (charqui and longaniza sausage) in Chile

open access: yesBrazilian Archives of Biology and Technology, 2012
The aim of this work was to identify and quantify the volatile compounds in five different commercial brands of charqui and longaniza sausages. Volatile compounds were extracted from some samples headspace using solid phase microextraction (SPME).
María Pía Gianelli   +3 more
doaj   +1 more source

Analysis of Caffeine, Chlorogenic Acid, Trigonelline, and Volatile Compounds in Cold Brew Coffee Using High-Performance Liquid Chromatography and Solid-Phase Microextraction—Gas Chromatography-Mass Spectrometry

open access: yesFoods, 2020
This study investigated the non-volatile and volatile compounds in samples of cold brew (CB) coffee, coffee from a coffee shop (CS), ready-to-drink (RTD) coffee, and brewed coffee from a coffee maker (CM).
JeongAe Heo   +3 more
doaj   +1 more source

GC-MS analysis of honeybee products derived from medicinal plants

open access: yesBeni-Suef University Journal of Basic and Applied Sciences, 2023
Background Honeybees provide a wealth of valuable natural products containing health-promoting bioactive compounds, including honey, bee bread, bee venom, bee pollen, propolis, and royal jelly.
Maha Montaser   +7 more
doaj   +1 more source

Characterisation of the semi-volatile component of Dissolved Organic Matter by Thermal Desorption – Proton Transfer Reaction – Mass Spectrometry [PDF]

open access: yes, 2017
Proton Transfer Reaction – Mass Spectrometry (PTR-MS) is a sensitive, soft ionisation method suitable for qualitative and quantitative analysis of volatile and semi-volatile organic vapours. PTR-MS is used for various environmental applications including
Cook, Sarah   +6 more
core   +6 more sources

Identification, Comparison and Classification of Volatile Compounds in Peels of 40 Apple Cultivars by HS–SPME with GC–MS

open access: yesFoods, 2021
Aroma is an important quality indicator for apples and has a great influence on the overall flavour and consumer acceptance. However, the information of the aroma volatile compounds in apple peels is largely unknown. In this study, evaluation of volatile
Shunbo Yang   +4 more
doaj   +1 more source

Effects of Different Fixation Methods on Volatile Organic Compounds in Fresh Leaves of ‘Qiancha No.1’ Tea [PDF]

open access: yesShipin Kexue
To explore the most suitable fixation method for the study of volatile organic compounds in fresh tea leaves, this study compared the effects of five fixation methods-steam fixation, hot air fixation, microwave fixation, vacuum freeze fixation, and ...
YANG Xianfeng, Zhang Tuo, Pang Dewen, Xi Yanan Zeng Tingting WANG Jing, ZHANG Xiaoqin,
doaj   +1 more source

Combined membrane process for dealcoholization of wines: Osmotic distillation and reverse osmosis [PDF]

open access: yes, 2019
The demand of beverages with low or zero alcohol content is fast growing over the last years for health benefits of drinkers and more restrictive policies in alcohol consumption. Membrane processes are nowadays the most commonly used.
Albanese D.   +5 more
core   +2 more sources

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