Question

A single cell protein refers to-
A. A specific protein extracted from pure culture of single type of cells
B. Source of mixed proteins extracted from the pure or mixed culture of microorganisms or cells
C. Proteins extracted from a single cell
D. A specific protein extracted from a single cell

Answer 1

Hint:- These proteins refer to microbial proteins that are also known as edible unicellular microorganisms. They are typically grown on agricultural waste products and, as such, through autotrophic growth, inherit the ecological footprint and water footprint of industrial agriculture.

Complete step-by-step solution:-
Option A is incorrect. Pure or mixed algae, yeast , fungi or bacterial culture biomass or protein extracts may be used as an ingredient or as a substitute for protein-rich foods and may be used for human or animal feed consumption. Industrial agriculture is characterised by a high-water footprint, high land use, the loss of biodiversity, the general deterioration of the atmosphere, and leads to climate change through the emission of one third of all greenhouse gases. SCP development does not actually present any of these significant disadvantages.
Option B is correct. Single cell protein (SCP) refers to both single and multicellular species that are used together to turn biomass into food items that are edible. Mixed protein or biomass sources are harvested to produce protein-rich foodstuffs from pure or mixed cultures of algae, yeast, fungi or bacteria.
Option C is incorrect. An edible protein derived from pure, dead, or dried cell biomass microbial cultures. For humans or livestock, they may be used as a protein supplement. In their biomass, microorganisms like algae, fungi, yeast, and bacteria have very high protein content.
Option D is incorrect. Single cell protein (SCP) source protein extracts refer to proteins derived from various types of unicellular microorganisms, such as fungi, bacteria, yeast, and algae. Based on the source, the market for protein extracts from single cell protein sources that are grown for synthesis on multiple carbon sources.
So, the correct answer is Option B.

Note:- Autotrophic SCP defines failed-safe mass food production solutions that can efficiently produce food even under harsh climate conditions. The issue with extracting single-cell proteins from the waste is the expense and dilution. In very low concentrations, typically less than 5%, they are found.