A method for preparing a Luo Han Guo sweetening composition from Siraitia grosvenorii and a use thereof. The method for extracting the sweetening composition from Siraitia grosvenorii preferably includes the followings: accelerating ripening of immature Siraitia grosvenorii, and performing juicing, extraction with pure water, removal of impurities, concentration and purification to obtain the sweetening composition. Further, the present application relates to a compound sweetener containing the sweetening composition, which can be widely used in foodstuffs, beverages, healthcare products, and daily chemicals. The contents of mogroside III, mogroside IIe, and the like in the Luo Han Guo sweetening composition are controlled so as to improve the flavor thereof, and a production process for the sweetening composition uses only pure water, without use of organic solvents such as ethanol, to ensure a greener and healthier production process.

Methods and systems for extracting additional beneficial lipid-soluble heavy compounds from plant material in an environmentally sustainable manner. A method includes preparing a solution that includes a solvent comprising one or more of a monoterpene, a monoterpenoid, a sesquiterpene, or a sesquiterpenoid. The solution further includes a solute comprising a plant material. The method includes extracting one or more compounds from the plant material using the solvent comprising the one or more of the monoterpene, the monoterpenoid, the sesquiterpene, or the sesquiterpenoid.

The present invention relates to a process for preparing a hemp seed extract that is useful as a flavoring composition in food and beverages. The method does not involve the use of re-agents that would impair the taste of the resulting extract, in particular organic solvents. The invention also relates to a hemp seed extract that can be prepared by use of the process of the invention. The invention also relates to the use of the hemp seed extract of the invention as a flavoring composition, in particular in food and beverages. Finally, the invention also relates to foods or beverages comprising a hemp seed extract of the invention.