Starch and inulin bulk powder are two common polysaccharide compounds. They are both carbohydrates, but they have many significant differences in structure, source, function and application. The following will explain the differences between inulin and starch from multiple perspectives. This includes their definition, molecular structure, source, digestion and absorption characteristics, nutritional value, uses and their applications in industry.
Definition
Inulin is a naturally soluble dietary fiber. It is widely found in the roots, underground stems or tubers of some plants. The molecular structure of inulin is mainly composed of fructose units connected by β-2,1-glycosidic bonds, and usually exists in a chain structure, often with glucose units at the end. As a natural polysaccharide, inulin has the characteristics of low calories and low glycemic index, and is often used in health foods.
Starch is a polysaccharide composed of glucose units connected by α-1,4 and α-1,6 glycosidic bonds. It is widely found in seeds, roots and tubers of plants and is the main way for plants to store energy. Starch can form a gelatinous substance in water and is often used as the main energy source of food.
Molecular structure
●Structure of inulin:
The main component of inulin is a polymer of fructose connected by β-2,1-glycosidic bonds, usually containing 5 to 60 fructose units. Fructose units exist in a chain structure, and a glucose unit is usually attached to the end of the chain. Therefore, inulin belongs to a polymer of fructose. Inulin is an oligosaccharide or polysaccharide, which can be partially fermented by probiotics in the intestine due to its structural characteristics.
●Structure of starch:
Starch is a polysaccharide formed by glucose units connected by α-1,4-glycosidic bonds and α-1,6-glycosidic bonds. The molecular structure of starch can be divided into two parts: amylose and amylopectin. Amylose is composed of linear glucose units, while amylopectin is composed of glucose units with branched structures. Amylopectin occupies a larger proportion in starch molecules, so the structure of starch is more complex.
Source
●Source of inulin:
Inulin mainly comes from the roots, underground stems and tubers of some plants. Common sources of inulin include plants such as chrysanthemum roots, chicory, artichokes, rhizomes, asparagus, onions, etc. Chicory (Cichorium intybus) is one of the important sources of commercial inulin. Inulin is usually obtained from these plants by water extraction. Guanjie Biotech is one of the pure inulin powder manufacturers that our inulin bulk powder from Jerusalem artichokes and chicory.
●Sources of starch:
Starch is widely found in many plants. Especially roots, seeds and tubers. For example, plants such as corn, wheat, potatoes, rice and soybeans all contain a high proportion of starch. In industrial production, starch is usually extracted from the seeds, tubers or grains of these plants.
Digestion and absorption characteristics
●Digestion and absorption characteristics of inulin:
Inulin is a soluble dietary fiber that is usually not broken down by human digestive enzymes. It is not quickly digested and absorbed in the gastrointestinal tract, but enters the colon through the intestines and is fermented by probiotics in the colon. Inulin can stimulate the growth of probiotics and promote the balance of beneficial flora. It can improve intestinal health. Inulin does not significantly increase blood sugar levels, so it is suitable for diabetic patients.
●Digestion and absorption characteristics of starch:
Starch is a polysaccharide that can be digested by the human body. The digestion process is usually catalyzed by digestive enzymes such as salivary amylase and pancreatic amylase. During the digestion process, starch is broken down into glucose units and absorbed into the blood through the small intestine. Since starch is quickly digested and absorbed, it will quickly increase blood sugar levels. Starch is an important source of energy.
Nutritional value
●Nutritional value of inulin:
Inulin is rich in soluble dietary fiber, which promotes intestinal peristalsis and relieves constipation. Inulin also has the characteristics of low calories and low glycemic index, which is very suitable for people who control their weight or manage blood sugar. Inulin bulk powder also has the effect of enhancing immune function, promoting the growth of beneficial bacteria, and improving the intestinal microecological environment.
●Nutritional value of starch:
Starch is the main energy storage substance of plants and an important source of energy for the human body. Starch is broken down into glucose during digestion to supply the energy required by various cells and tissues in the body. Starch itself does not contain fat and protein, and mainly provides carbohydrates. Therefore, it can provide a lot of calories for the human body. The high glycemic index of starch makes it an ideal food for before and after exercise, manual laborers or people who engage in heavy physical activity.
Uses and Applications
●Uses of Inulin:
Inulin is widely used in the food and healthcare products industry. As a soluble dietary fiber, inulin is often used to improve the taste of food, increase dietary fiber content, slow down the absorption of sugars, etc. In functional foods, inulin is used as intestinal health food, weight loss products, diabetic supplementary food, etc. In addition, inulin is also used in the production of dairy products, beverages, chocolate, candy, bread and other foods as a low-calorie sweetener and ingredient to improve taste.
●Uses of Starch:
Starch is widely used in the food industry. Especially as a thickener, gelling agent, stabilizer, etc. in food. Starch plays an important role in bread, biscuits, candy, beverages and other foods. In addition, starch can also be used in industrial production. Such as paper manufacturing, textiles, cosmetics and other fields. Due to its easy availability and low cost, starch has been widely used in daily life.
Health Effects and Comparison
●Health Effects of Inulin:
Inulin has many health benefits. It can promote intestinal health, regulate intestinal flora, and prevent constipation and intestinal diseases. Inulin performs well in controlling blood sugar levels. It is especially helpful for diabetic patients. Studies have shown that inulin intake can promote mineral absorption and enhance bone health. In addition, the low-calorie content of inulin has become an indispensable ingredient in the weight loss process.
●Health Effects of Starch:
Starch is very important for the human body as an energy source. However, due to the high glycemic index of starch, excessive intake may cause blood sugar fluctuations. Especially for diabetic patients, it may cause problems with increased blood sugar. Despite this, starch is also an important nutrient in the daily diet, and a reasonable amount of consumption helps maintain the body's energy balance.
Physical Properties
●Physical Properties of Inulin
Inulin bulk powder is a white or light yellow powder with good water solubility. It has a high solubility in water and has strong hygroscopicity. Therefore, it is often used as a substitute for sugars or other thickeners when preparing low-sugar and low-calorie foods.
●Physical properties of starch
Starch is usually in the form of a white powder with strong viscosity when dissolved in water. It gelatinizes when heated to form a viscous, gelatinous substance. Starch has low hygroscopicity but poor solubility in water. Therefore, it usually needs to be heated to dissolve.
Inulin powder and starch are significantly different in many aspects. Their respective characteristics and applications make them play an important role in different fields and health needs. Guanjie Biotech is one of the bulk inulin powder suppliers. We provide inulin from Jerusalem artichoke and chicory. High quality, welcome to consult: info@gybiotech.com.
