background: the efficacy of piper aduncum essential oil was evaluated against periplaneta americana adults and nymphs in the laboratory. methods : the plant essential oil at varying concentrations ranging between 10,000 to 80,000 ppm were placed inside glass beakers, rolled horizontally to ensure the essential oil covers all sides of the beakers and exposed to adults and nymphs of p. americana ...

The infant intestinal microbiota is often colonized by two subspecies of Bifidobacterium longum: subsp. infantis (B. infantis) and subsp. longum (B. longum). Competitive growth of B. infantis in the neonate intestine has been linked to the utilization of human milk oligosaccharides (HMO). However, little is known how B. longum consumes HMO. In this study, infant-borne B. longum strains exhibite...

A simple, rapid and efficient method has been developed for the isolation of piperine from the fruits of Piper nigrum. The method involves extraction of the fruit powder with glacial acetic acid, from which piperine is partitioned into chloroform and subsequently crystallized. The identity of the compound was confirmed by its melting point, comparison of IR, HNMR, XRPD, mass spectral and molecu...

Bifidobacterium longum subsp. longum CMCC P0001, a standard probiotic strain in China, has been widely used in clinical medicine for more than 20 years. Here we report the genome features of B. longum strain CMCC P0001.

Bifidobacterium longum (B. longum) as a delivery system for endostatin was shown to have definite antitumor effects. Moreover, it was found that the enrichment of selenium was able to enhance the immunity of mice. In order to further evaluate the safety and efficacy of B. longum carrying pBV22210-endostatin (B. longum-En) enriched with selenium (Se-B. longum-En), we determined the biochemical c...

The Piper betle (Tamil: vetrilai) is a glabrous climbing vine belonging to the family Piperaceae . Essential oil from vellaikodi variety of Piper betle L leaves (Piperaceae) was extracted by hydro-distillation method in a clevenger type apparatus. The essential oil thus obtained was analyzed by gas chromatography and gas chromatography – mass spectroscopy. Sixty five components were identified ...