Abstract
Biotechnology is a wide-ranging science that uses modern technologies to construct biological processes, organisms, cells or cellular components. The clinical new instruments, industry, and products developed by biotechnologists are useful in research, agriculture and other major fields. The biotechnology is as ancient as civilization. The food you buy, and the pets you love? Using artificial selection for crops, domesticated animals and other species, you may thank our distant ancestors for setting off the agrarian revolution. When Alexander Fleming discovered antibiotics, and when Edward Jenner invented vaccines, the biotechnology potential was harnessed. And, of course, without the mechanisms of fermentation that gave us beer, wine and cheese, it would not be possible to imagine modern society. This article summarizes some of the applications of biotechnology in food & agriculture.
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Applications of biotechnology in animal and plant sector
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Introduction
Products from natural sources are being used from centuries [1,2,3]. Processing the natural products to get significant benefits have been the priority in every era of science [4,5,6,7]. Biotechnology is an advanced, yet developed, technology that develops or modifies a product for some applied purpose utilizing living organisms and/or substances from these. It can be extended to all organism genera, i.e., from less complicated genera like viruses and bacteria to more complicated genera like plants and animals. So, biotechnology has become a major feature of modern industry, agriculture and medicine. Modern biotechnology provides a number of methods that scientists use to recognize and control the genetic structure of species for use in agricultural product development or processing [8].
The implications of biotechnology includes, breeding of plants for raising and stabilizing yields by improving their ability to confront various pests, insects and other possible threats, to fight various conditions like drought and counter diseases that could attack and cold and soil acidity, biotechnology is also being applied for nutritional enhancement of various foods [9, 10].
Disease-Free Plants
Disease-free plants are a very practical applications of biotechnology, these could be produced by micropropagation method. One of the examples of such plants is banana. Bananas are typically grown in countries where they emerge to be major source of income/employment and/or food. Micropropagation is a way to regenerate disease-free plantlets of bananas from tissues of healthy banana plants. It has all the possible benefits of being a revolutionary technique that is relatively inexpensive and easy to use [11].
Agriculture on acid soils
Lime can be applied to the soil to preserve the pH of the soil. This process emerges to be excellent but is expensive and temporary as well. Alternatively, it is possible to grow improved cultivars which are tolerant of aluminum [9].
Fortification of Crops
In developing countries or countries where there is a lot of shortage of food, fortified crops emerge to be an excellent food source which are supplemented with nutrients for rising malnourished children. One of the examples of such fortified crops is 'Protato'. This, genetically modified potato, is being widely cultivated and used in India and provides approximately one-third to one-half more protein than a common potato. In addition, this genetically modified potato also contains significant quantities of all essential amino acids, such as lysine and methionine. This 'Protato' could be a very potential food source in countries where potato is a major staple food [12]. Another example of such crops is golden rice. These genetically modified rice has a higher content of beta-carotene [13]. The grains and leaves of cowpeas are considered to be used as side or relish dishes. The cowpea is being consumed as staple food in various countries. The varieties of cowpeas with genetically modification has been grown in Tanzania [14]. The fortification of nutrients to enhance the nutritional status of crops, developed by genetically modified organisms with the major difference has been reported in Table1.
Animal Feed
Genetically modified crops are practically being used in developed countries. Such kind of crops have a very significant potential to provide more nutrients than the normal [22].
Reproduction in Aquaculture
Biotechnology has emerged to have great practical applications in aquaculture, biotechnology has helped to maximize the growth and production in the aquaculture. Research is being continued in this field for better and harmless production of aquatic organisms suitable for human consumption [23].
Pest Resistant Crops
Pest attack is one of the very common problem in a number of different crops all around the globe, these crops may include fodder crops or other crops for the purpose of getting food. One the example of such crops is BT-Cotton. The genes of Bacillus thuringiensis (Bt), a very common, are inserted in cotton crop in order for development of certain protein in it. The protein is very toxic to a number of different insects. With this aid of biotechnology, the developed BT-Cotton leads to a less pest attack ultimately leading to a significant more production [24].
Drought Resistant Crops
Targeted and short gun methods are two different two different but main techniques in genetic engineering. These techniques are applied in order to obtain transgenic plants that will possess the ability to confer drought resistance [10].
Biofuel
The prosperity of future is mainly based on the supply of equitable, secure, sustainable and affordable energy. Production of biofuel is one of the emerged trends in recent years. Biofuel could be an emerged and reliable substitute of fossil fuels. Six microalgae’s strains were photosynthetically produced in a photobioreactor. Among these six microalgae, the Chlorella vulgaris strain is most dominant for the production of biodiesel. The Chlorella vulgaris has been used as feedstock. The quality of biofuel and productivity of lipids could be measured as a criterion for the selection of species to produce biodiesel [25].
Vaccine Development
Biotechnology has developed potential platform for scientists to develop wide ranges of vaccine in cheap and reliable ways and in mass production for all scales [26].
Fermentation
Fermentation is a predominant process to synthesize breweries. At commercial level, several strains of yeast are being utilized for the production of breweries. The light wine can be made through the mechanism of genetic engineering. Foreign gene encoded with glucoamylase has enabled to modify yeast. The glucoamylase is expressed through yeast during the fermentation process by which conversion of starch into glucose has been reported [27]. The strains of yeast are used for synthesis of wine which are capable of initiating malolactic fermentation. Synthesis of wine is comprised of two steps: 1) Primary fermentation uses yeast to convert the glucose into alcohol. 2) Secondary fermentation results in the production of lactic acid with the maximum acidity level using bacteria. The costly divergent strategies are applied to overcome this issue. The malolactic gene such as Lactobacillus delbrueckii is inserted into the strain of industrial yeast to resolve this problem. This gene depresses the conversion of malate hence minimizing the wine acidity level [27].
Enzymes
Enzymes are specifically used in processing and production of different items of food at industrial level. In 20th century second last decade, companies are being using enzymes to process food. The production of food is done by developing the technique of producing organisms through genetically modification. These enzymes contain carbohydrases and proteases. The maximum production could be achieved by the cloning of genes for these in minimum time period. These enzymes are specifically used for producing curd, cheese and flavoring items of food. Maximum percentage of enzymes are used in the industry of food. The more than 50% quantities of carbohydrases and proteases are being utilized in the USA industry of food. These enzymes comprise of α-amylase and rennin [27].
Use of Biotechnology to Improve Yield
Milk is being consumed all over the world as a beneficial food with high nutritional value. The pituitary gland releases bovine Somatotropin hormone which increases the production of milk. Formerly, the calves were being slaughtered to extract this hormone from their brain. Nevertheless, that method results in the less hormone quantity. Scientists utilized Escherichia coli for the insertion of gene with encoded bovine Somatotropin in it. Now, this hormone results in the production of more quantity. This hormone obtains 10–12% increase in the production of milk. In 2050, the world’s population will be reported nine billion. Consequently, on the same land, higher yield will be required. Potentially, biotechnology is the best technology to combat various food yield problem [27]. The greater level of hunger and poverty is reported in Africa. The malnutrition and hunger causes consequences in the case of in diseases such as rickets and kwashiorkor. These diseases result higher deaths. Africa can get rid of starvation, diseases, malnutrition and hunger with maximumly potential usage of biotechnology. It can improve standard of health and decrease rate of mortality. Three countries of Africa: Egypt, South Africa and Burkina Faso have been already profited through biotechnological adaptation of numerous methods of cultivation. For instance, 0.1 million Burkina Faso’s farmers elevated the cotton yield by 126% with the potential use of GM technology of food. The technology of GM food is adopted which is required for the commercial system. It causes the products of GMO release, allergenicity tests, toxicity and digestivity of GM food. In that particular area, European Union and USA should assist Africa. Many countries of Africa deficient in the system of biosafety. African should develop biosafety laws and make sure their approval their as priority for the easily adoption of system. The deficiency of education is another obstacle in the technology of GM food’s adoption. Kenyan people are much concerned about technology of GM food as they made protest against it. The lack of education is the major factor of the adverse attitude of people of Kenya toward biotechnology of food. People should be aware of advantages and disadvantages of GM technology of food through conveyance of message in seminars by scientists [28].
Shell Life
Various juice of fruits possesses minimum shell life. For instance, tomato is being consumed all over the world. Tomatoes should be harvested at stage of mature green in order to transportation. They are exposed to ethylene for earlier ripening and then picking. The quick ripening of tomatoes is due to more temperatures although, their taste could be destroyed at low temperature. A company of California named Calgene engineered genetically tomato to resolve that problem. They produced Flavr Savr variety of tomatoes in order to sort out the issue. An enzyme which is named as polygalacturonase causes the breakdown of pectin to ensure ripening. Scientists modified genetically tomatoes to decrease the quantity of enzyme. Antisense RNA is used for that specific purpose [28]. Low quantity of that enzyme shows consequences in the case of breakdown of cell wall and pectin in stronger tomatoes. These Flavr Savr variety possess tomatoes of firmer quality with increased shell life and later support transport [29].
Biotechnology: Enhancing Taste
Scientists are using the method of biotechnology for the production of fruits with enhanced taste. GM foods with enhanced taste are comprise of eggplant, cherries, pepper, seedless watermelon and tomato etc. The seed are removed from these fruits which shows better consequences such as more content of sugar with soluble form increasing sweetness in fruits [30]. The pathways of fermentation are altered by utilizing biotechnology for the purpose to add flavor and aroma in wine [27].
Future Prospects
There is requirement of research work to disprove or prove the local scientists’ claims against GM food consumption. The layman should be questioned about potential dangers executed by GM food against human health and ecosystem, limited scientists can give response. Why is so?? Major reason is the lack of research associated to these areas. Consequently, GM food could be commercialized with the supreme confidence of scientists should to support food of GM technology and with making people argument about it.
Conclusion
The practical applications of biotechnology have merged to have helpful and safe production of sustained food. More research is recommended in the said field for better and safe production and processing technologies and techniques.
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Biotechnology is a wide-ranging science that uses modern technologies to construct biological processes, organisms, cells or cellular components. This article summarizes some of the social implications of biotechnology.
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Ranjha, M.M.A.N., Shafique, B., Khalid, W. et al. Applications of Biotechnology in Food and Agriculture: a Mini-Review. Proc. Natl. Acad. Sci., India, Sect. B Biol. Sci. 92, 11–15 (2022). https://doi.org/10.1007/s40011-021-01320-4
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DOI: https://doi.org/10.1007/s40011-021-01320-4