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Views: 0 Author: Site Editor Publish Time: 2022-12-30 Origin: Site
Banana powder can be divided into three types, one is the whole banana powder obtained after the edible part of the banana is dehydrated and crushed; the other is the instant banana powder obtained by enzymatic
hydrolysis and liquefaction of banana meat to obtain banana juice and then drying The third kind is the banana spray powder that the slag after extracting banana juice is extruded and sprayed. Banana powder is a new product in China. It can better maintain the original carbohydrates, proteins, fats, amino acids, vitamins and minerals of bananas. It tastes sweet, easy to eat, and has high nutritional value. It has always been known as plant-based milk powder, can be washed with water and made into a paste for direct consumption. It can also be added to milk powder to make banana milk powder, which can not only make the nutrition of milk powder more comprehensive, but also overcome the shortcoming of dry stool when babies eat milk powder. Banana powder can also be used as an accessory (auxiliary) material for various foods, and the potential market is very broad. In addition, banana powder is convenient for storage and transportation.
In order to solve the problems of increasing production without increasing income and difficulty in selling bananas, banana powder is a promising deep-processing product.
Goel R K et al. studied the anti-ulcer effect of banana powder and its effect on mucosal resistance; Mukhopadhyaya K et al. investigated the effect of banana powder on gastric mucosa; Best R et al., Lewis D A et al. explored the protective effect of unripe banana powder on gastric mucosa . Their research shows that banana powder not only has the effect of obviously enhancing the resistance of gastric mucosa to ulcer, but also can treat ulcer by inducing cell proliferation. The results of animal experiments are: (1) the combination of [3H]thymidine and mucosal cell DNA in mice fed banana powder was significantly increased; (2) the amount of total carbohydrates in gastric mucosa was significantly increased; (3) gastric juice (4) The total carbohydrate and the ratio of carbohydrate to protein in gastric juice increased significantly. It was confirmed that banana powder can increase gastric mucosal resistance and treat ulcers'. ".
Eating bananas can promote digestion and treat constipation. Banana powder made from dried and crushed bananas can also moisturize the intestines and relieve constipation. The dietary fiber in bananas can increase intestinal peristalsis, and the pectin in the pulp can absorb water, adjust the ecological conditions of the intestinal tract, change the dynamics of the growth and decline of intestinal bacterial populations, inhibit harmful spoilage bacteria, and increase beneficial acidophilic bacteria. Promoting the normalization of colon function is beneficial to alleviate and treat diseases such as food accumulation in children and senile constipation.
Metabolic syndrome is not so much a disease as it is a group of risk factors involving high blood pressure, high blood sugar, obesity and high cholesterol levels. The problem is that while any one of these factors carries risk, combining them can worsen the situation, potentially increasing the risk of diabetes by roughly five-fold. These problems can also lead to heart attacks and strokes.
A study was conducted in Brazil to understand the effect of consuming green banana powder on body weight and body measurements in obese women. The thinking was that banana flour, which is low in the glycemic index, could improve weight and overall health in people with metabolic syndrome.
The findings showed improvements in metabolic syndrome symptoms, including reductions in "systolic blood pressure and fasting blood sugar," despite no significant weight loss or change in body size.
A healthy colon requires a healthy gut, which is why probiotics and prebiotics are so popular today. What does this have to do with green banana flour and resistant starch? When bacteria eat resistant starch, a short-chain fatty acid called butyrate is produced. Butyrate is useful for the cells lining the colon because it keeps it healthy and even helps fight cancer cells.
The gut loves butyrate because it keeps things going, which is really important because the gut has the role of providing immune cells, gut neurons, gut flora, and nutrients. In addition, with high doses of potassium also found in banana nutrition, cells get extra support
Green banana flour may provide resistant starch properties, which may help reduce insulin sensitivity. On a high-fat diet, supplementation with butyrate (formed from green banana flour fermented in the gut) can maintain body weight without reducing food intake, according to a study in mice from the Louisiana State University system . The study concluded that dietary supplementation with butyrate therefore has the potential to prevent and treat diet-induced insulin resistance.
Additionally, a study published in the International Journal of Environmental Research examined the effect of native banana starch on the glycemic response of obese and lean subjects. The researchers looked specifically at glucose to measure its effects. They concluded that banana starch supplementation "improved postprandial glucose and insulin responses in both obese and lean subjects during a 48-h daily routine and a postprandial tolerance test".
While resistant starch helps control blood sugar levels, it may also aid in weight loss. Green banana powder is bulky, so you may feel fuller when you eat it because it promotes satiety .
A Mexican study published in the International Journal of Environmental Research introduced native banana starch and soy milk to assess body weight and insulin sensitivity in obese patients with type 2 diabetes. This study showed that patients who consumed native banana starch actually lost more weight than those who received a control treatment; therefore, green banana powder may be used as a weight loss supplement.
Foods considered to be sources of resistant starch may help lower cholesterol levels, which means that green banana flour is a nutrient cholesterol-lowering food in its own right. In fact, according to a study published in the Journal of Nutrition in the Experiments performed on rats showed that the effects of resistant starch showed a reduction in total cholesterol and triacylglycerol levels.
In another study from South Dakota State University, the use of resistant starch lowered levels of various types of cholesterol in participants. Twelve women and eight men diagnosed with metabolic syndrome were selected for the study. Everyone has levels of belly fat that are considered obese, along with at least two other conditions, such as high blood pressure, diabetes, high triglycerides, or low levels of good cholesterol. The study showed that the average total cholesterol (LDL) of the subjects dropped significantly. They also lost weight and size.
Vacuum freeze-drying uses the principle of ice crystal sublimation to freeze the material below the eutectic point temperature to make the water into solid ice, and then keep the temperature of the material below the triple point in a high-vacuum room to give the necessary sublimation heat. The moisture in the material is directly converted from ice crystals to water vapor, which is condensed and removed by the water vapor condenser in the vacuum system, so as to obtain the technology of drying products. It is used to dry materials under vacuum and low temperature conditions. It is suitable for heat-sensitive and easily oxidized materials, and can better maintain the original color, aroma, taste, shape and vitamins and other nutrients of food. However, the shortcomings of vacuum freeze-drying equipment, such as large one-time investment, large energy consumption, and long drying time, restrict its application.
Large-scale promotion and application. In 2004, Yu Fengqiang and others studied the vacuum freeze-drying of banana powder. The eutectic point temperature of banana pulp was measured by the resistance method to be -10°C. The pre-freezing temperature was lower than the eutectic point temperature during operation, so that the Moisture freezes well. Two factors and three levels of orthogonal experiments were carried out on the vacuum freeze-drying of banana pulp. The results showed that the heating temperature of the shelf and the working pressure of the drying chamber had an impact on the shortening of the drying time during the freeze-drying process. Temperature is next. Under the experimental conditions, the optimal process parameters were obtained, that is, the heating temperature and working pressure of the fixed material thickness and the analysis section, and the optimal process parameters of the sublimation section were heating temperature 20 ° C, working pressure 40 Pa, and the corresponding freeze-dried curve. In Taiwan Province, the banana meat is dried and ground into powder by freezing and vacuum low-temperature drying methods, and the price in the international market is more than US$6/kg. Except above-mentioned two kinds of drying methods, also can prepare banana powder with simple and easy method, such as Mugula J K 173 et al. studied the production and storage stability of non-alcoholic banana drink powder in 1994, compared sunshine and oven drying banana powder The content of vitamins, sugar and microbes in the powder is high, but the nutritional loss of the product is serious.
The heating time of the spray-dried material is short, and the operation is easy to be automated and mechanized, but the cleaning of the equipment is cumbersome, and it is not suitable for drying highly viscous materials.
In 1997, Laxminarayana G S and others developed instant banana milk mixed powder. The main process is to standardize the fat mass fraction of milk to 2.0% and concentrate it to 1/3 of the original volume; peel and slice bananas, add 1.0% water ～1.5% and heated to 85～90℃, keep 5～10 min; add carboxymethyl cellulose CMC 0.015% in milk and mix with banana, then homogenize under certain pressure; mix this mixture Spray drying, the inlet temperature is 160-180°C, and the outlet temperature is 85-95°C; finally, some sugar is added to make the sugar mass fraction of the banana milk mixed powder reach 42.5%. In 1985, King V A E of Chinese Taipei studied spray drying to produce banana juice powder. Wang Jianli et al carried out the spray drying experiment of banana powder in 1995. The main results are: (1) Banana is rich in pectin and sugars, and its viscosity is large. It is generally difficult to spray into powder. Microcapsule technology is adopted to solve this technology. problem. (2) Bananas are highly viscous and cannot be sprayed with the concentration of general materials. It is more appropriate to add 1 to 1.5 times of water to the banana meat. At the same time, pretreatment measures are taken to reduce the viscosity of the slurry and achieve better results. The feed rate is determined by the outlet temperature, subject to maintaining the rated temperature range. (3) The sugar content of bananas is high, the temperature is too high to cause coking, too low to dry, and the production efficiency is low. The inlet temperature is 250-300°C, and the outlet temperature is 80-90°C. Banana powder produced by spray drying is powdery, milky white to milky yellow in color, maintains the color of the original pulp, has a fragrant smell, and has good hydrophilicity. The dry rate is 20% of the pulp and 12% of the whole banana. <6%, well preserved nutrients. The mass fraction of sugar is 62.7%, the mass fraction of crude protein is 3.98%, the mass fraction of crude fat is 0.3%, and the mass fraction of crude fiber is 0.2%. It is rich in VA and VB. , VC and nicotinic acid, containing 18 kinds of amino acids, including 8 kinds of essential amino acids, the total amino acid is 3.36%, and the nutritional value is very high. Mineral element analysis shows that it is rich in beneficial elements such as potassium, iron, phosphorus, calcium, zinc, manganese, strontium and so on. Toxic elements such as lead and arsenic and SO. The content is lower than the national food hygiene regulations.
