Three new compounds: 2R,3R-pterosin L 3-O-beta-D-glucopyranoside (1), beta-D-xylopyranosyl(1-->2)-7-O-benzoyl-beta-D-glucopyranoside (2) and 4-O-benzoyl-beta-D-xylo-pyranosyl(1-->2)-7-O-benzoyl-beta-D-glucopyranoside (3), together with nine known compounds, were isolated from the ethyl acetate extract of Pteris ensiformis. 5-[2-Hydroxyethylidene]-2(5H)-furanone (4), which had been synthesized, ...

background beta-lactam resistance in gram-negative bacteria, especially escherichia coli, is a main clinical problem. it is often caused by the co-production of β-lactamases, particularly extended-spectrum β-lactamases (esbls) and ampc enzymes. it may lead to a problem for diagnosis via recommended phenotypic tests by the clinical and laboratory standards institute (clsi). conversely, β-lactama...

A strain of bakers' yeast was isolated which could utilize cellobiose and other beta-D-glucosides quantitatively as carbon and energy sources for growth. Cellobiose-grown cells contained a largely cryptic enzyme active against the chromogenic substrate p-nitrophenyl-beta-D-glucoside. The patent (intact cell) activity of such cells was inhibited by azide and, competitively, by cellobiose; neithe...

This paper is devoted to the study of interactions between stationary electromagnetic sources for minimal and nonminimal CPT-odd photon sector Standard Model Extension (SME), where we search mainly physical phenomena not present in Maxwell electrodynamics. First consider sector, Lorentz violation caused by Carroll-Field-Jackiw (CFJ) term, namely $\sim\epsilon^{\mu\nu\alpha\beta}\left(k_{AF}\rig...

Wheat production is dominated by a subsistence smallholder system. Additionally, more than 4.7 million farmers are engaged in wheat production. However, poverty chronic and pervasive among farmers. Hence, targeting the efficiency of right strategy to improve well-being Therefore, we conducted this study measure level figure out sources inefficiency using stochastic frontier beta regression mode...

Mushrooms have unique sensory properties and nutritional values as well as health benefits due to their bioactive compounds, especially beta-glucans. Well-known edible and medicinal mushroom species as well as uncommon or unknown species representing interesting sources of bioactive beta-glucans have been widely studied. Commercially cultivated and wild growing mushrooms were analysed for their...

<p><strong>ABSTRAK </strong></p><p><em><strong>Latar Belakang:</strong></em> Prevalensi anemia di Indonesia pada remaja putri meningkat dari 37.1% menurut Riskesdas 2013 menjadi 48.9% tahun 2018. Snackbar merupakan cemilan yang digemari oleh remaja. Penambahan tepung umbi bit snackbar sebagai sumber zat besi diharapkan alternatif sehat bagi ...