Biotechnology Notes
What are Nematodes? The word nematode is derived from Greek words- Nema meaning “thread” and oids meaning “resembling or forms”. Nematodes are also known by different names such as threadworms, roundworms, eelworms, and nema. Nematodes constitute the largest group of an animal kingdom comprising 80-90% of all multicellular animals. These … Read more
Edible Vaccines WHAT IS VACCINE? The vaccine is a biological preparation that improves immunity against a particular disease. It contains an agent that resembles a disease-causing microorganism and is often made from a weakened or killed form of microbe, its toxins or one of its surface proteins. The agent stimulates … Read more
Citric Acid Production INTRODUCTION Citric acid is the most important commercial product which is found in almost all plant and animal tissues. The molecular formula of citric acid is C6H8O7, 2-hydroxy-1,2,3-propane tricarboxylic acid. It is widely used organic acid in the field of food (60%) and pharmaceuticals (10%). In 1784 … Read more
Biofertilizer- Types and Uses Biofertilizer is a substance which contains living microorganisms which, when applied to seeds, plant surfaces, or soil and promotes growth by increasing the supply or availability of primary nutrients to the host plant. Biofertilizers add nutrients through the natural processes of nitrogen fixation, solubilizing phosphorus, and stimulating plant … Read more
Somaclonal Variation Definition The genetic variations found in the in vitro cultured cells are collectively referred to as somaclonal variations. Selection of somaclones Without in vitro selection: An explant (leaf, stem, root, etc.) is cultured on a suitable medium, supplemented with growth regulators. The unorganized callus and cells do not … Read more
Introduction Biological process in which sugars (glucose, fructose, sucrose) are converted into cellular energy. Ethanol is produced in the result of this process. It is colorless, volatile or flammable liquid. It is widely used as biofuel as well as an alcoholic beverage is increasingly being consumed globally. This is mainly … Read more
Design of a Fermenter Fermenter or bioreactor refers to a device that provides all the basic necessities important for biological product extraction. A fermenter contains different devices that help to maintain the environmental factor inside it which in turn leads to the production of biological products. Therefore the main objective … Read more
Plant Breeding Plant breeding is the purposeful manipulation of plant species to create desirable plant types that adapt to human needs more efficiently. It is an essential pre-requisite in the field of plant biotechnology. Plant biotechnology is a set of techniques used to adapt plants for intentional usage and benefits. … Read more
Vectors for gene cloning: Plasmids and Bacteriophage Image Sources: Wikipedia and Vector Stock In molecular biology, a vector refers to a DNA molecule that transfers genetic material into another cell and the genetic material gets to incorporate in the cell genome and expressed. The foreign DNA carried by the vector … Read more
Polymerase Chain Reaction (PCR) It is one of the most important biotechnological tools developed. It refers to a biological technique that helps to produce several copies of DNA outside of any living cell. DNA polymerase is the key enzyme that is present behind the whole process. The enzyme involved in … Read more
Quorum Sensing in Bacteria Quorum sensing in bacteria Quorum. It is a Latin word that means a group of members carries out an activity legally. Quorum sensing is a mechanism of cell to cell signaling or density sensing in micro-organisms. Characteristics for quorum sensing For the bacteria to use quorum … Read more
Fermentation of Vinegar Fermentation is the metabolic process by which organic molecules are converted into acids, gases or alcohol in the absence of oxygen. Types of Fermentation Lactic acid fermentation. Alcoholic fermentation. Read also: Design of a Fermenter (https://thebiologynotes.com/design-of-a-fermenter) Vinegar Vinegar is an aqueous solution of acetic acid and trace chemicals … Read more
Biofuel Biofuel are the fuel that produces by using agricultural crops and other biomass material within a short period of time. Common commercial used biofuel are bioethanol, biodiesel, and bio methanol. Bioethanol made from sugarcane, sugar beet, and algae. Biodiesel is made from vegetable oil, animal fats and algal lipid … Read more