Category: S
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Scale-Up
The transition step in moving a (chemical) process from experimental (e.g., “test tube,” small, bench) scale to a larger scale producing more or much more product that the bench scale (e.g., production of tons/year in a chemical plant). A process may require a number of scaleups, which each scale-up producing more product than the last…
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Saxitoxins
Paralytic poisons that are produced by certain shellfish. A neurotoxin produced by some dinoflagellates and concentrated during feeding by mollusks such as mussels and clams. It causes paralytic shellfish poisoning.
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Saturated fatty acids (SAFA)
Fatty acids containing fully saturated alkyl chains (on a molecule). This means that the carbon atoms comprising the chains are held together by one carbon-to-carbon bond and not two or three. High levels of dietary SAFA have been related to increased coronary heart disease (CHD) in humans. Beef fat typically contains approximately 54% saturated fatty…
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Satellite DNA
Many tandem repeats (identical or related) of a short basic repeating unit (in the DNA molecule).
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Salting out
A technique used for forcing (dissolved) proteins out of a solution by increasing the concentration of salt in the solution. The Na+ and CI- ions derived from the salt compete for and “tie up” water molecules that are solubilizing the protein molecules thereby rendering them insoluble or more insoluble. A method of separating a specific protein…
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SI Nuclease
An enzyme that specifically degrades (destroys) single-stranded sequences of DNA.
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Sthira
Steadiness.
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Smriti
The quality of mind related to one’s memories and past experiences.
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Sivananda, swami
Prominent twentieth-century yoga teacher instrumental in spreading the knowledge of yoga to the West.
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Shusumna nadi
The central energy channel in one’s being, located within the spinal cord.