Hop (Humulus lupulus L. var Lupulus) is a diploid, dioecious plant with history of cultivation spanning more than one thousand years. cones are valued for their use in brewing and contain compounds therapeutic interest including xanthohumol. Efforts to determine how biochemical pathways responsible desirable traits regulated have been challenged by the large (2.8 Gb), repetitive, heterozygous g...

This study compares the yields of different extractions methods for a Brazilian variety Humulus lupulus using scCO2, scCO2 + ethanol, ethyl acetate, and compressed propane. Extracts were characterized by total phenolics content (TPC), flavonoid (TFC), antioxidant activity (AA). The extraction from 2.7 to 10.1 wt% when propane at 20 °C 10 MPa acetate 80 25 MPa, respectively. Furthermore, effect ...

Hop (Humulus lupulus L.) is a clonally propagated, dioecious, perennial, climbing plant used commercially for their secondary metabolites. The resins containing α- and β-acids, essential oils produced by the lupulin glands, present on female flowers are to add bitterness, aroma flavour beer. Recently, flavonoids, including chalcones flavanones, of hops have been shown exert variety biological a...

Hop stunt viroid (HSVd), a significant pathogen of some hop cultivars, was detected for the first time in hops Australia. Plants were tested graft-transmissible pathogens prior to their use research trials. Upon observing symptoms indicative potential infection, RNA extracted and amplified using reverse transcription polymerase chain reaction (RT-PCR); HSVd identity confirmed by sequencing.

The polyphenol-enriched fraction of an ethanolic hops extract (Humulus lupulus) was separated to provide four acylphloroglucinol-glucopyranosides (1-4). 1-(2-Methylpropanoyl)phloroglucinol-glucopyranoside 1 has been isolated from hops before, whereas 1-(2-methylbutyryl)phloroglucinol-glucopyranoside 2, known as multifidol glucoside, and 1-(3-methylbutyryl)phloroglucinol-glucopyranoside 3 were f...