Abstract In plants, viral diseases are second only to fungal in terms of occurrence, and cause substantial damage agricultural crops. The aqueous extracts shell ginger, Alpinia zerumbet exhibit inhibitory effects against virus infections belonging the Solanaceae family. this study, we isolated an anti-plant-virus molecule from using a conventional method involving combination reversed phase col...

background black pepper (piper nigrum) is one of the well-known spices extensively used worldwide especially in india, and southeast asia. the presence of alkaloids in the pepper, namely, piperine and its three stereoisomers, isopiperine, chavicine and isochavicine are well noticed. objectives the current study evaluated the effect of lyophilization and oven drying on the stability and decompos...