The value of pomace is worth digging into

Relevant data show that the world produces more than tens of millions of tons of pomace every year

New technology turns waste into treasure

Currently, grape pomace is produced in large quantities but has a low recovery rate, and most of it is only used as fertilizer or disposed of directly as waste

Grape seeds and skins contain a natural component, tannins, but their presence imparts a slightly bitter taste to red wines; along with tannins are phenolics and proteins, whose functionality has been studied Approved

It is understood that the company has developed two products, ruby ​​puree and gold puree, the difference between the two lies in the color of the ingredients and the variety of grapes

Because the polyphenols in the puree bind so well to pea protein, the company is currently working on a new project with Protein Industries Canada to improve the quality of some of the plant-based cheeses produced in the country, the company said

Rediscover the value of pomace

Grape pomace mainly includes grape skin pomace (accounting for 38%-52% of the residue) and grape seeds, both of which contain a variety of rich organic substances, such as phenolic substances, aromatic substances, grape seed oil and protein

Among the grape pomace, the grape seed oil has a higher utilization rate

Not only grape waste is "treasure", but most fruit pomace is rich in bioactive substances, which can be used as raw materials for health food and as antioxidants to prolong the shelf life of food

Besides being a food raw material, pomace can also be a source of synthetic high value-added food ingredients

Some fungi are good at converting plant material into pleasant smelling compounds, including vanillin, raspberry ketone, and benzaldehyde

Wild strawberries are favored by consumers because of their strong aroma and unique sweetness.

In addition, making pomace into an environmentally friendly packaging material has also become the focus of development in the industry

It is understood that at present, the areas with more in-depth research on the comprehensive utilization of grape pomace are concentrated in major wine-producing countries, and the application fields of grape pomace cover food, medical treatment, chemical industry and feed

Today, China has begun to focus on the efficient utilization of pomace

Undoubtedly, in the process of "fruit and vegetable explosion", functionalization, scene-based, cross-category form, modern preservation and processing technology will all become new engines for the development of the industry

　　(Comprehensive arrangement by Yang Xiaojing)

　　"China Food News" (06 edition on August 8, 2022)

　　(Editor-in-charge: Yang Xiaojing)