Maruts as low temperature microbes

Y17.5 Sub Zero Temperatures
Psychrophiles - low temperature microbes

यजु 17-5,
हिमस्य त्वा जरायुणाग्ने परिव्ययामसि । पावको ऽ अस्मभ्यं शिवो भव।।Y-17।5

.When fully buried under deep snow in cold regions of the earth, all fallen plants and dead bodies, and organic substances, get preserved. The unhealthy malevolent microorganisms of death,decay and diseases, which may have been in them, get destroyed, as if the death of pathogens is caused by sheer old age starvation, and burning by fire.
(Veda is here talking about the phenomenon of preservation at low temperatures, Freeze drying for preservation and cold storage, may not be after all, such modern techniques, when understood and appreciated in Vedic context)

Psychrophiles - low temperature microbes

Bacteria which live in cold conditions are known as psychrophiles. Since so much of our planet is generally cold, i.e. below 5°C, it is not surprising that they are very common amongst a wide variety of habitats. To enable them to survive and grow in cold environments, psychrophilic bacteria have evolved a complex range of adaptations to all of their cellular components, including their membranes, energy-generating systems, protein synthesis machinery, biodegradative enzymes and the components responsible for nutrient uptake. Whilst such a systems approach to the topic has its advantages, all of the changes can be described in terms of adaptive alterations in the proteins and lipids of the bacterial cell. The present review adopts the latter approach and, following a brief consideration of the definition of psychrophiles and description of their habitats, focuses on those adaptive changes in proteins and lipids, especially those which are either currently being explored for their biotechnological potential or might be so in the future. Such applications for proteins range from the use of cold-active enzymes in the detergent and food industries, in specific biotransformations and environmental bioremediations, to specialized uses in contact lens cleaning fluids and reducing the lactose content of milk; ice-nucleating proteins have potential uses in the manufacture of ice cream or artificial snow; for lipids, the uses include dietary supplements in the form of polyunsaturated fatty acids from some Antarctic marine psychrophiles