ethyl acetate/sėjamasis ryžis

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Confirmation of potential herbicidal agents in hulls of rice, Oryza sativa.

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An ethyl acetate extract of Oryza sativa (rice) hulls yielded seven compounds: hentriacontane, 1-tetratriacontanol, beta-sitosterol, momilactone A, momilactone B, tricin (a flavonoid), and beta-sitosterol-3-O-beta-D-glucoside. The structures of these compounds were elucidated with 500 MHz nuclear

Activity of Icacinol from Icacina trichantha on Seedling Growth of Oryza sativa and Arabidopsis thaliana.

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Broadleaf weeds are very costly for crop growers. Additional herbicidal compounds need to be obtained, especially from natural sources. Extracts of Icacina trichantha were evaluated for responses in germinating seeds and seedlings of rice (Oryza sativa) and Arabidopsis (Arabidopsis thaliana). An

Comparative extraction and simple isolation improvement techniques of active constituents' momilactone A and B from rice husks of Oryza sativa by HPLC analysis and column chromatography.

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This paper reports comparative extraction efficiencies and enhancement methods for natural herbicidal (growth inhibitors) compounds, momilactone A and B, respectively from the dried husks of Oryza sativa using different extraction techniques and different solvent systems. Four different

Apoptosis induction in colon cancer cell lines and alteration of aberrant crypt foci in rat colon by purple rice (Oryza sativa L. var. glutinosa) extracts.

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Crude ethanol extracts (CEE) of purple rice was fractionated to obtain hexane soluble (HSF) and ethyl acetate soluble fractions (EASF). Total antioxidant capacity was higher in CEE than the HSF and EASF. However, HSF exhibited strong antiproliferation and apoptosis induction against colon cancer

Anti-invasive activity against cancer cells of phytochemicals in red jasmine rice (Oryza sativa L.).

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Red rice contains pharmacological substances including phenolics, oryzanol, tocotrienol and tocopherol. Recently, red rice extract has been employed as a source of antioxidants for inhibition of tumor growth. This study was carried out to evaluate the anti-invasion effects of red rice extract

Growth promotion of rice seedlings by allelopathic polysaccharide from Welsh onion.

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The underground portion of the Welsh onion (Allium fistulosum) was extracted and separated into seven fractions to purify allelopathic compounds that were found to promote the growth of rice seedlings (Oryza sativa). The 80% (v/v) ethanol-insoluble fraction of the hot water extract showed the

Screening and identification of antimicrobial compounds from Streptomyces bottropensis suppressing rice bacterial blight.

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Xanthomonas oryzae pv. oryzae (Xoo) is the most devastating pathogen to Oryza sativa and has been shown to cause bacterial blight. Two bioactive compounds showing antimicrobial activities against Xoo strain KACC 10331 were isolated from a Streptomyces bottropensis strain. The ethyl acetate extract

An extract from brown rice inhibits signal transduction of angiotensin II in vascular smooth muscle cells.

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BACKGROUND Health benefits of brown rice over white rice have been described previously. However, whether the outer bran of rice contains an ingredient useful to prevent cardiovascular diseases remains unknown. The subaleurone layer of rice, which is usually lost by milling brown rice for whitening,

Antifungal activity of Wickerhamomyces anomalus and Lactobacillus plantarum during sourdough fermentation: identification of novel compounds and long-term effect during storage of wheat bread.

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This study aimed at investigating the antifungal activity of Wickerhamomyces anomalus and sourdough lactic acid bacteria to extend the shelf life of wheat flour bread. The antifungal activity was assayed by agar diffusion, growth rate inhibition, and conidial germination assays, using Penicillium

Transgenic rice lines expressing maize C1 and R-S regulatory genes produce various flavonoids in the endosperm.

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Flavonoids, compounds that possess diverse health-promoting benefits, are lacking in the endosperm of rice. Therefore, to develop transgenic lines that produce flavonoids, we transformed a white rice cultivar, Oryza sativa japonica cv. Hwa-Young, with maize C1 and R-S regulatory genes. Expression of

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