Results 31 to 40 of about 550,061 (354)

On the Consequences of the Detection of an Interstellar Asteroid [PDF]

open access: yes, 2017
The arrival of the robustly hyperbolic asteroid A/2017 U1 has potentially interesting ramifications for the planet-formation process. Although extrapolations from a sample size of one are necessarily uncertain, order-of-magnitude estimates suggest that ...
Batygin, Konstantin, Laughlin, Gregory
core   +2 more sources

Study on the Differences of Volatile Components in Jingshan Tea from Different Tea Cultivars [PDF]

open access: yesChaye kexue
To investigate the differences of volatile components in Jingshan tea from different tea cultivars, the stir bar sorptive extraction gas chromatography-mass spectrometry (SBSE-GC-MS), headspacegas chromatography-ion mobility spectrometry (HS-GC-IMS) were
HOU Zhiwei, LÜ Yongming, MA Kuan, ZHANG Huiyuan, GU Zhe, ZHANG Ran, LI Le, JIN Yugu, SU Zhucheng, CHEN Hongping
doaj   +1 more source

Analysis of Volatile Components in the Manufacturing Process of Eucommia ulmoides Leaves Fuzhuan Tea Based on Headspace Solid Phase Microextraction/Gas Chromatography-Mass Spectrometry Method

open access: yesShipin gongye ke-ji, 2023
In order to examine the variation of volatile components of Eucommia ulmoides leaves Fuzhuan tea during the production process, the combination of headspace solid phase microextraction (HS-SPME) with gas chromatography-mass spectrometry (GC-MS) was ...
Qiao ZENG   +8 more
doaj   +1 more source

Analysis of Volatile Components of Adenosma indianum (Lour.) Merr. by Steam Distillation and Headspace Solid-Phase Microextraction

open access: yesJournal of Chemistry, 2013
The essential oil of Adenosma indianum (Lour.) Merr. plays an important role in its antibacterial and antiphlogistic activities. In this work, the volatile components were extracted by steam distillation (SD) and headspace solid-phase microextraction (HS-
Zhi Zeng   +3 more
doaj   +1 more source

Analysis the Volatiles and Its Aroma Contribution in Rosa Sterilis by HS-SPME and LLE-SAFE

open access: yesShipin gongye ke-ji, 2023
To comprehensively analyze the composition and contribution of volatile components in Rosa sterilis, the headspace solid phase microextraction (HS-SPME) and liquid liquid extraction with solvent assisted flavor evaporation (LLE-SAFE) was used, along with
Haoran MO   +8 more
doaj   +1 more source

Volatile Components from Selected Tahitian Liverworts [PDF]

open access: yesNatural Product Communications, 2009
Six Tahitian liverworts, Trichocolea pluma, Chandonanthus hirtellus, Mastigophora diclados, Jungermannia sp., Plagiochila sp. and Cyathodium foetidissimum were chemically investigated. All of these liverworts produce their own characteristic compounds. Vanillic acid methyl ester was isolated for the first time from T. pluma.
Agnieszka, Ludwiczuk   +5 more
openaire   +2 more sources

Honey volatiles as a fingerprint for botanical origin: a review on their occurrence on monofloral honeys [PDF]

open access: yes, 2020
Honeys have specific organoleptic characteristics, with nutritional and health benefits, being highly appreciated by consumers, not only in food but also in the pharmaceutical and cosmetic industries. Honey composition varies between regions according to
Figueiredo, Ana Cristina   +3 more
core   +1 more source

Differences in Volatile Components between the Mature Green and Mature Yellow Fruits of 3 Kinds of Red Flesh Guava(Psidium guajava L.) Analyzed by GC-IMS

open access: yesShipin gongye ke-ji, 2023
In order to analyze the differences in volatile components between the mature green and mature yellow fruits of 3 kinds of red flesh guava, gas chromatography-ion mobility spectrometry (GC-IMS) was used to detect the volatile components in mature green ...
Haibo WANG   +4 more
doaj   +1 more source

Analysis of volatile components and screening of free radical-scavenging active components in fresh Guhong tangerine peel essential oil

open access: yesShipin yu jixie
ObjectiveTo analyze the volatile components of fresh Guhong tangerine peel essential oil, evaluate its overall free radical scavenging activity, quickly screen the components with strong free radical scavenging activity without separating individual ...
RAN Chunxia, HU Jiang, DENG Huiling
doaj   +1 more source

Volatile Components of Strawberries

open access: yes, 2023
Strawberries of such cultivars as “Ducat”, “Honey” and “Polka” were studied to define the content of aromatic volatiles using the methods of highly efficient liquid chromatography. About 49 components were identified in the composition of volatiles of ripe strawberries, namely esters, aldehydes, ketones, furanone, organic acids, aroma compounds ...
openaire   +2 more sources

Home - About - Disclaimer - Privacy