Results 91 to 100 of about 2,824 (198)

Identification and Quality Evaluation of Raw and Processed Asarum Species Using Microscopy, DNA Barcoding, and Gas Chromatography-Mass Spectrometry

open access: yesJournal of Analytical Methods in Chemistry, 2020
Asarum (Aristolochiaceae) is one of the common herbs used to relieve exterior syndromes. Some volatile components of Asarum which have toxic effect may cause adverse reactions such as headache, general tension, unconsciousness, and respiratory paralysis.
Guangzhe Yao   +7 more
doaj   +1 more source

EFEK ANTIHELMINTIK EKSTRAK ETANOL BIJI ADAS MANIS (Pimpinella anisum L.) PADA CACING GELANG BABI (Ascaris suum GOEZE) IN VITRO [PDF]

open access: yes, 2016
Latar Belakang: Biji adas manis (Pimpinella anisum L.) mengandung trans-anethole, estragole, metileugenol dan tanin yang telah diketahui memiliki efek antihelmintik.
DHEVI SAFITRI, OKKY
core  

Chemical composition and antibacterial activities from the essential oils of myrtaceae species planted in Brazil

open access: yesQuímica Nova, 2010
The essential oils of seven Myrtaceae species were investigated for its chemical composition and antibacterial activity. The volatile oils were characterized by a high content of monoterpenoids of which 1,8-cineole (88.0, 65.0 and 77.0% for Melaleuca ...
Cleber J. Silva   +6 more
doaj   +1 more source

Efeito da hipergravidade simulada sobre a germinação, o crescimento e a produção de óleo essencial de manjericão (Ocimum basilicum L.) [PDF]

open access: yes, 2015
O mercado internacional de óleos essenciais movimenta anualmente 1,8 bilhões de dólares e a participação brasileira nesse mercado é de apenas 0,1%. A grande biodiversidade brasileira, ainda pouco explorada em relação à composição química de sua flora ...
Goulart, Vinícius Moser
core  

Chemical composition and product quality control of turmeric (Curcuma longa L.) [PDF]

open access: yes, 2011
Chemical constituents of various tissues of turmeric (Curcuma longa L.) have been extensively investigated. To date, at least 235 compounds, primarily phenolic compounds and terpenoids have been identified from the species, including 22 diarylheptanoids ...
Aggarwal, Bharat   +5 more
core   +2 more sources

Interactive effect of cowpea variety, dose and exposure time on bruchid tolerance to botanical pesticides [PDF]

open access: yes, 2015
Callosobruchus maculatus has for years remained a serious menace in cowpea in Sub-Sahara Africa. The objective of this study was to investigate the effect of genotypic cowpea (Vigna unguiculata (L.) Walp) varieties, time and dose on C.
Gbaya, O.A.   +2 more
core   +2 more sources

Aktivitas Antioksidan Dari Minyak Bunga Cengkeh (Syzygium Aromaticum) Kering Berdasarkan Aktivitas Antiradikal Yang Ditentukan Menggunakan Electron Spin Resonance [PDF]

open access: yes, 2013
Pada penelitian ini, dilakukan uji aktivitas antiradikal terhadap minyak cengkeh. Minyak cengkeh yang digunakan diperoleh dari hasil isolasi bunga cengkeh menggunakan distilasi uap selama 8 jam dan dilakukan karakterisasi menggunakan Kromatografi Gas ...
Juswono, U. P. (Unggul)   +2 more
core   +1 more source

CHEMICAL COMPOSITION, ANTIOXIDANT AND ANTIMICROBIAL PROPERTIES OF THREE ESSENTIAL OILS FROM PORTUGUESE FLORA [PDF]

open access: yes, 2012
The present work reports on the evaluation of chemical composition and antioxidant and antimicrobial activities of essential oils of three aromatic herbs, growing wild in the south of Portugal, used in traditional food preparations: Foeniculum vulgare ...
Almeida, A. S.   +3 more
core  

Circadian variation of methyleugenol anesthesia in albino rats.

open access: yesBrazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas, 1991
In Wistar rats synchronized to a 12-h light/12-h dark cycle (lights on from 08:00 to 20:00 h), the ip injection of methyleugenol (200 mg/kg) at 08:00, 12:00 and 16:00 h significantly increased the sleeping time (time between loss and recovery of righting reflex) when compared to animals anesthetized at 20:00, 24:00 and 04:00 h.
M B, Sousa   +4 more
openaire   +1 more source

Kinetics Study Addition Reaction for Methyleugenol with Formic Acid to Produce The Methyleugenol Formic Ester as Intermediate Compound of Hypertension Drug

open access: yesIndonesian Journal of Chemical Science and Technology (IJCST)
The methyl eugenol formic ester is the intermediate formation of the 1-(3,4-dimethoxy phenyl)-2-amino-2-cyano propane compound, a hypertension drug.   This study aimed to find the value of the reaction order and study the mechanism of an addition reaction of methyl eugenol with formic acid to produce the methyl eugenol formic ester.  Gas chromatography
Fadhilah, Nabila Nur   +3 more
openaire   +2 more sources

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