Pumpkin seed extract powder
What is pumpkin seed extract powder
Pumpkin seed, also known as white melon seed, golden melon seed and pumpkin kernel, is the mature seed of Cucurbita moschata Duch.
Pumpkin seeds are rich in fat, protein, sterols and various minerals. They have the effects of insect repellent, anti-inflammatory and analgesic. They can be used to treat tapeworm, Ascaris lumbricoides, postpartum hand and foot edema, whooping cough and other diseases. Long term consumption has the effects of health care, disease prevention and treatment.
Pumpkin has a long planting history in China, a wide planting area and the output ranks first in the world. At present, the output of pumpkin seed is also increasing year by year. Pumpkin seed has been recognized as a health food and has been paid more and more attention by consumers. Therefore, developing new pumpkin seed products and improving the added value of pumpkin seed has broad development prospects
What is polysaccharide of Pumpkin seed extract powder
Polysaccharide, also known as polysaccharide, is a high molecular compound composed of more than 10 monosaccharides connected by glycosidic bonds. It is an important macromolecular compound that regulates the growth and development of organisms.
A large number of studies have shown that polysaccharides have a variety of pharmacological activities, such as regulating immunity, antioxidation, reducing blood sugar Anti-tumor, anti radiation and anti-aging effects, and has the advantages of low toxic and side effects and high safety.
Therefore, the research and development of polysaccharides has been a research hotspot in recent years.
What does pumpkin seed extract include
Pumpkin seeds are rich in protein, fat, vitamins and minerals, and the oil content is as high as 41%,
The oil is rich in palmitic acid, oleic acid, linoleic acid and linolenic acid. It can be refined into edible oil, and the quality of oil can be comparable to that of soybean oil.
What nutrition does Pumpkin seed extract powder have
Pumpkin seed extract powder meal is a by-product of pumpkin seed oil extraction, and its protein content is as high as 40%. However, at present, pumpkin seed meal is mostly used as feed or directly discarded, and its protein is not fully utilized.
In this paper, Pumpkin seed extract powderpkin seed meal was used as raw material to establish the best extraction method of pumpkin seed meal protein, and the nutritional value and functional properties of pumpkin seed meal protein were studied.
At the same time, Pumpkin seed extract powder meal protein was enzymolysis to find the active substances in the enzymolysis products, so as to improve the utilization value of pumpkin seed meal protein
What does Pumpkin seed extract powder include
Pumpkin seed is the mature seed of pumpkin. It is rich in fat, protein, vitamins and minerals
And other ingredients. The crude fat content of pumpkin seeds is high, which can reach 40.4% ~ 41%. The unsaturated fatty acids are mainly oleic acid, linoleic acid, arachidic acid, palmitic acid and so on
Why does Pumpkin seed extract powder extract have hypoglycemic effect
Effect of defatted protein before and after pumpkin seed germination on hypoglycemic effect in mice, The results showed that the sprouted pumpkin seed protein played a significant role in reducing blood glucose, which was similar to that of the sprouted pumpkin seed The increase of arginine content in protein is directly related
Why does Pumpkin seed extract powder extract have antioxidant and anti-inflammatory effects
In pumpkin seeds γ- Tocopherols and carotenoids are high antioxidant substances, which can play an important role
However, studies have shown that some substances extracted from pumpkin seeds with methanol have strong antioxidant activity Its antioxidant activity can be compared with the antioxidant activity of some synthetic antioxidants.
Why does pumpkin seed extract have insect repellent effect
Pumpkin seeds can expel parasites such as Schistosoma japonicum and Taenia solium. Pumpkin seed amino acid has a good effect on expelling worms effect. Pumpkin seed amino acid can paralyze each segment of Taenia solium
Pumpkin seed amino acid caused blood loss in mice The body of trematode shrinks, resulting in the degradation of reproductive organs and the reduction of the number of eggs. It’s good for Taenia solium The parasite has paralytic effect, but does not damage the nerve and has no toxic and side effects. It is very suitable for the elderly and patients with parasitic diseases children
Why does pumpkin extract have the effect of alleviating hypertension
Mice with spontaneous hypertension were fed pumpkin seed oil, After four weeks, the content of free radical scavenger in mice could be significantly improved, which was inhibited by angiotensin converting enzyme When the preparation is used together, the therapeutic effect is significantly improved, which shows that pumpkin seed oil has the effect of alleviating hypertension
What are the development and utilization of Pumpkin seed extract powder
After pumpkin seeds are treated, the oil can be extracted by pressing, leaching and supercritical fluid extraction
The quality of pumpkin seed oil can be improved Comparable to soybean salad oil. The residue after oil extraction has high protein content and can become high-quality plant protein Source.
How to extract pumpkin seed oil
Pumpkin seed oil extracted by solvent extraction must be refined before it can be eaten The natural components of pumpkin seed oil are easy to be destroyed, which reduces the nutritional value of pumpkin seed oil
Supercritical fluid extraction technology can well preserve the nutritional components of pumpkin seed oil There are many studies. Using supercritical fluid extraction technology to extract oil from pumpkin seeds, the oil extraction rate is high, and the protein of pumpkin seed meal is not easy to denature.
The extraction process is feasible and conducive to the comprehensive utilization of pumpkin seeds. What needs to be considered is its high processing cost and whether it is practical for non high price pumpkin seed oil
The most common methods of extracting vegetable oil are microwave and ultrasonic extraction. Microwave extraction technology has the advantages of extraction It has the advantages of short time, simple technology, high oil extraction rate, good oil quality and less reagent consumption; The advantages of ultrasonic extraction technology are that it can shorten the extraction time, the extraction process does not need heating, the oil quality is good, and the component is not damaged, so as to reduce the production cost of vegetable oil.
What are the utilization of pumpkin seed meal
As pumpkin seed is widely used to extract oil, the synthesis of pumpkin seed meal, a by-product of pumpkin seed oil extraction Utilization also needs to be solved urgently. Pumpkin seed meal is mostly used as feed or discarded, which not only wastes resources, but also causes environmental pollution.
Pumpkin seed meal contains protein, residual fat, minerals and vitamins. Pumpkin seed meal has high protein content and good application value, so protein is the focus of pumpkin seed meal development. At the same time, a new idea was put forward – the study of pumpkin seed polypeptide and its physiological activity, which is of great significance for the application of pumpkin seed meal
What is plant protein of Pumpkin seed extract powder
As the material basis of life activities, protein has the function of regulating human physiological metabolism. always
Since, the source of high-quality protein has been animal protein.
With the improvement of people’s living standards and quality, protein The demand for quality and nutritional value has also increased. People’s demand for protein has been difficult to meet Foot, especially developing countries, have fallen into the crisis of protein resource shortage. Developed countries, on the other hand, suffer from high intake The amount of animal protein increases the incidence rate of diabetes, hypertension and atherosclerosis.
In view of the above reasons, plant protein has attracted great attention in recent years because of its characteristics of low fat, high protein and no cholesterol
The research shows that plant protein is rich in nutrition, including complete amino acid species, balanced composition and content, and It is easily digested and absorbed by human body, so it has high nutritional value; At the same time, plant protein also has a variety of physiological health functions, such as lowering cholesterol, lowering blood pressure and antioxidation
Adding plant protein as food additive can not only improve the nutritional value of food, but also
It can also improve the structural properties of the food itself and contribute to the digestion and absorption of the human body
Where are polysaccharides
Polysaccharide is a high polymer formed by glycosidic linkage, which is generally composed of hundreds or thousands of monosaccharides.
There are a lot of polysaccharides in animals, plants and microorganisms. Together with protein, fat and nucleic acid, they are called the most important biological macromolecules in organisms. Polysaccharides can be divided into plant polysaccharides, animal polysaccharides and microbial polysaccharides.
What effect does polysaccharide have of Pumpkin seed extract powder
Studies have shown that polysaccharides have a variety of biological activities such as immune regulation, lowering blood lipid, antioxidation, anti radiation, anti-tumor and anticoagulant , and have no toxic and side effects and no residues.
They have attracted extensive attention of researchers at home and abroad. They are research hotspots in the fields of natural drugs, agriculture and food. In recent years, due to the rapid development of biology, chemistry and other disciplines, a lot of work has been done on Polysaccharides in China.
At present, the research focus of researchers at home and abroad is to find polysaccharides with higher activity and more effective for cancer and other diseases, and to determine the structure-activity relationship between polysaccharide structure and activity.
What is the extraction method of polysaccharide of Pumpkin seed extract powder
Polysaccharides have different distribution sites, physical and chemical properties and structural composition, so it is necessary to select the best extraction method.
At present, the common extraction methods include hot water extraction, acid-base extraction, enzyme assisted extraction, ultrasonic assisted extraction, microwave-assisted extraction and supercritical fluid extraction.
What is the hot water extraction method of polysaccharide of Pumpkin seed extract powder
Hot water extraction is not only a traditional method, but also the basis of other extraction methods.
Hot water extraction uses the strong polarity of solvent water and heating method to rupture the cell wall, resulting in the diffusion of Polysaccharides from the cell It has the advantages of simple operation, low cost, less interference components, but it takes a long time, and the high temperature will destroy the polysaccharide structure.
What is the acid-base extraction of polysaccharides of Pumpkin seed extract powder
The extraction principle of acid extraction is the same as that of alkali extraction. Both of them use cells to absorb water, swell and break in acid solution or alkali solution to obtain polysaccharides. In order to avoid polysaccharide degradation during alkali extraction, NaBH4 or KBH4 is usually added to the solution.
The two methods of acid-base extraction require strict extraction conditions. The pH value of solvent, extraction time and temperature should be well controlled to prevent the change of polysaccharide structure
What is the enzyme assisted extraction of polysaccharides of Pumpkin seed extract powder
Enzyme assisted extraction is to select the corresponding enzyme to destroy the plant cell wall and extract the polysaccharides from the cells according to the high specificity of the enzyme.
According to the number of enzymes used, it can be divided into single enzyme method and compound enzyme method. Typical enzymes include protease, pectinase and cellulase
What is ultrasonic assisted extraction of polysaccharides of Pumpkin seed extract powder
Ultrasonic assisted method can effectively leach the effective components of plant cells by using the thermodynamics, machinery and cavitation of ultrasonic. Ultrasound also has strong pressure and vibration, which can break the cell wall in a shorter time, accelerate the release and diffusion of the extract, and improve the yield
What is microwave-assisted extraction of polysaccharides of Pumpkin seed extract powder
The microwave-assisted extraction method makes the electromagnetic wave enter the extracted material according to the microwave radiation, which makes the interior of the cell heat up rapidly, resulting in the huge pressure generated by the vaporization of water in the cell, breaking the cell wall and leaching the effective components in the cell
What is supercritical fluid extraction of polysaccharides of Pumpkin seed extract powder
Supercritical extraction technology is a new extraction technology with fluid as solvent. It has high diffusivity and high solubility to effectively separate and extract the extract. At present, the solvent for supercritical extraction is usually CO2, because its supercritical conditions (temperature 304.6 ℃, pressure 7.38 MPa) are easy to achieve
Why can polysaccharides have hypoglycemic activity of Pumpkin seed extract powder
With the improvement of people’s living conditions, the number of diabetic patients has increased year by year, especially incidence rate of middle-aged and elderly people. According to the statistics of relevant departments, up to 2005, the number of diabetic patients in China is as high as 30 million.
It is estimated that by 2030, the number of diabetic patients in China will reach 42 million, becoming the second largest diabetic country in the world after India.
Therefore, it is necessary to develop safe and less toxic and side effects of natural drugs, in which polysaccharide has a significant hypoglycemic effect. Polysaccharide can reduce blood sugar mainly through the following aspects: reducing liver glycogen and strengthening the use of sugar in surrounding tissues and organs; Protect islet cells; Strengthen the effect of hypoglycemic hormone, reduce the effect of hypoglycemic hormone and regulate the activity of glucose metabolism enzymes.
Why can polysaccharides reduce blood lipid activity of Pumpkin seed extract powder
Hyperlipidemia refers to the disorder of lipid metabolism in which cholesterol and triglyceride in serum exceed the normal level. It can cause cardiovascular and cerebrovascular diseases, atherosclerosis and other diseases.
In recent years, due to the change of people’s eating habits, people often eat high cholesterol food, resulting in the increase of hyperlipidemia patients year by year and the patients tend to be younger. Therefore, it is imperative to regulate eating habits and develop drugs with high efficiency and little side effects
Why do polysaccharides have antioxidant activity of Pumpkin seed extract powder
In the process of oxidative metabolism, the body continuously produces different kinds of reactive oxygen free radicals, which contain one or more unpaired electrons or molecules. Oxygen free radicals are easy to damage tissues, and the induced reactions can cause tumors, aging, lipids and other diseases.
At present, with the deepening of the research on polysaccharides, it is found that many polysaccharides have certain antioxidant effects such as scavenging free radicals, anti DNA damage and anti lipid oxidation.
Their antioxidant mechanism may be to regulate and improve body immunity, improve the activity of antioxidant enzymes and directly scavenge reactive oxygen species
Why can polysaccharides fight tumors of Pumpkin seed extract powder
Tumor is one of the most serious diseases in the world. It is because the body is affected by a variety of carcinogenic factors, resulting in abnormal growth of a local cell at the gene level, resulting in abnormal proliferation and the formation of tumor.
The treatment of tumor is usually chemotherapy, which has serious side effects. Therefore, it is very important to develop a natural drug with little toxic and side effects.
At present, a variety of polysaccharides have been proved to have antitumor effects. The mechanisms of antitumor effects mainly include improving the immune ability of the body, directly killing tumor cells and inhibiting the formation of tumor blood vessels
Why can polysaccharides have antiviral activity of Pumpkin seed extract powder
The antiviral activity of polysaccharides has been well known. They have certain inhibitory effects on cytomegalovirus, HIV, influenza virus and so on.
At present, the research on the antiviral activity of polysaccharides mainly focuses on sulfated polysaccharides, which refer to polysaccharides with sulfate radical on hydroxyl group.
There are two common antiviral mechanisms of polysaccharides. One is to directly inhibit the attachment of virus to cells, entry into cells and virus replication; The other is to enhance the body’s immunity and improve the ability to resist viruses
What polysaccharide can regulate immunity of Pumpkin seed extract powder
The immunomodulatory effect of polysaccharide is one of its most important functional activities, which can be realized in many ways.
The realization of immune regulation mainly includes improving the phagocytic function of macrophages, increasing their volume and pseudopodia; Activate T cells and B cells to produce antibodies; Make NK cells proliferate and enhance their lethality;
The complement system is activated by classical and alternative pathways; Promote the production of interleukin (IL); Induce the secretion of interferon (IFN), promote the production of tumor necrosis factor (TNF) and increase its quantity
Why can polysaccharides resist fatigue of Pumpkin seed extract powder
Fatigue is a physiological phenomenon that will inevitably occur when the body’s physical or mental strength reaches a certain level, which is manifested in the decline of the body’s working ability or injury.
According to different forms of fatigue, fatigue can be divided into physical fatigue and psychological fatigue. Physical fatigue refers to the decline of exercise ability and its coordination.
Psychological fatigue is mainly manifested in the decline of attention, the insensitivity of mental activities and the weakening of memory
Where are Pumpkin seed extract powder produced?
Pumpkin is an angiosperm of Cucurbitaceae. It originated in central and South America.
It has been widely planted all over the world with strong adaptability to the environment, wide planting range and great yield.
At present, pumpkin can be divided into four cultivated varieties based on texture and stem shape, namely zucchini (American pumpkin), pumpkin (Chinese Pumpkin), bamboo shoot (Indian pumpkin) and grey seed pumpkin
What does Pumpkin seed extract powder contain
Pumpkin seeds are rich in protein, essential amino acids, phytosterols, fatty acids, vitamins, minerals and polysaccharides.
The protein in pumpkin seed is mainly composed of 59% albumin and globulin, and the total protein content is 30% – 40%. It is a high-quality plant protein resource