The composition of leaf and rhizome essential oils of Alpinia smithiae that grow wild in the Western Ghats of Kerala (South India) was analysed by gas chromatography. The major components were beta-caryophyllene, sabinene, myrcene and 1,8-cineole in both samples, but variation in the yield of oil as well as the major components between the two plant parts was observed.

The rhizomes of Alpinia pahangensis Ridley yielded a new bis-labdanic diterpene for which the name pahangensin A (1) was proposed along with a new labdane diterpene, pahangensin B (2). Their structures were elucidated by spectroscopic methods including, 1D and 2D NMR techniques and LCMS-IT-TOF analysis. Pahangensin A (1) was found to be an antibacterial agent against Staphylococcus aureus, Baci...

Alpinetin is a novel plant flavonoid derived from Alpinia katsumadai Hayata, found to possess strong anticancer effects. However, the antitumor effect of alpinetin on pancreatic cancer cells and the detailed mechanism remain unclear. The aim of this study was to investigate alpinetin's beneficial effect on pancreatic cancer and the possible molecu...

This study was designed to test whether Alpinia pricei (AP), a member of the ginger family indigenous to Taiwan, reduced metabolic syndrome induced by sucrose-containing drinking water in C57BL/6J mice. Mice given a chow diet were divided into a control group (C) or a test group given 30% sucrose water (SW) to drink ad libitum. After 22 weeks, mice in the SW group were subdivided into SW and SW...

Locally specific Natabo brown rice was identified in Pangaribuan Subdistrict, North Tapanuli, where the attack of stem borer, planthoppers, leafhoppers and stink bugs affects productivity. The alternative step to control pests a biological used by biology pesticides increase productivity food security. This research conducted for eight months during March October 2020, with survey stage, invent...

Pyricularia costina and three undescribed Pyricularia species were found as endophytes on wild ginger Amomum siamense and Alpinia malaccensis in Doi Suthep-Pui National Park, Chiang Mai, Thailand. Three new species, Pyricularia kookicola, P. longispora, and P. variabilis are described, illustrated and compared to similar Pyricularia species.