The production process of plant peptides begins with the selection of high-quality plant materials, such as flowers, leaves, roots, stems, etc., and preliminary treatment, including removal of impurities, crushing, and washing, to ensure the purity and suitability of the raw materials. Next, the treated plant materials are extracted using water extraction, acid extraction, alkaline extraction, or enzymatic extraction. Among these methods, enzymatic digestion has become the main method for peptide production due to its high safety, mild production conditions, and the ability to locate specific peptides for production. During the extraction process, techniques such as centrifugation, filtration, and extraction may be used to obtain protein peptides further. Subsequently, the mixture obtained by extraction is meticulously separated and purified by separation and purification techniques such as precipitation, dialysis, ion exchange chromatography, or gel filtration chromatography. Gel filtration chromatography is the most commonly used purification method due to its principle of separation based on molecular size and charge differences. Finally, the purified peptide extract is converted into a powdered finished product using spray drying technology. Spray dryers, especially centrifugal spray dryers and pressure spray dryers, play a key role in this process. Centrifugal spray dryers convert the extracts into very fine droplets through high-speed centrifugal atomization. In contrast, pressure spray dryers form small droplets through high-pressure injection by means of a high-pressure pump, after which both are brought into full contact with hot air to dry the extracts into a powdered product. After this step, the finished product of plant protein peptide can be obtained.

Soya Peptide: Produced by enzymatic digestion of soy protein. Soya peptide is not only of high nutritional value and easy to digest and absorb but also has various biological activities, such as lowering cholesterol, promoting fat metabolism, antioxidants, and so on. Corn peptide: made from corn protein by enzymatic digestion. Corn peptide has the functions of antioxidant, anti-hypertension, strength enhancement, anti-fatigue, liver protection, and so on. Wheat peptide: low molecular weight peptides obtained by enzymatic digestion of wheat protein as raw material. Wheat peptide has the effect of improving intestinal health, enhancing immunity, and promoting wound healing. Mung bean peptide: derived from mung bean protein, obtained through a specific enzymatic process. Mung bean peptide is rich in a variety of amino acids, has the effect of clearing heat, detoxification, and dampness, and is suitable for summer consumption or as a functional food ingredient. Walnut Peptide: Peptide obtained by enzyme digestion of walnut protein as raw material. The walnut peptide is rich in unsaturated fatty acids and a variety of biologically active ingredients, with brain-healthy and intellectual, antioxidant, cholesterol-lowering, and other effects. 

Improvement of food taste and color: Plant peptides, such as wheat peptides, can be used as food additives to improve the taste and color of food. It can be used as a flavor enhancer to enhance the freshness and taste of food, making it more delicious. Improve the nutritional value of food: Plant peptides can be used as nutritional enhancers to improve the nutritional value of food. For example, wheat peptide, as a high-quality protein source, is easy to digest and absorb and hypoallergenic, which can provide the body with essential amino acids and peptides and promote good health. Antioxidant effect: Plant peptides also have antioxidant properties, which can protect against free radicals and slow down the process of cellular aging, thus maintaining freshness and extending the shelf life of food.

Plant peptides themselves are not harmful to the human body. They are biologically active peptides prepared from plants, which are safe, nutritious, and widely available. However, if peptide products are taken for a long period, some side effects may occur, such as gastrointestinal discomfort, obesity, skin damage, and liver function impairment. When taking peptide products, regulatory instructions should be followed to avoid overdose or long-term use.