Tag: BEANS
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Kynureninase or L-Kynurenine hydrolase (KYNU) is part of the pathway for the catabolism of Trp and the biosynthesis of NAD cofactors from tryptophan (Trp).
Kynureninase or L-Kynurenine hydrolase (KYNU) (EC 3.7.1.3) is a PLP dependent enzyme that catalyses the cleavage of kynurenine (Kyn) into anthranilic acid (Ant). It can also act on 3-hydroxykynurenine (to produce 3-hydroxyanthranilate) and some other (3-arylcarbonyl)-alanines. Note: 3-Hydroxykynurenine is a metabolite of tryptophan, which filters UV light in the human lens. It is one of two pigments identified as responsible for the goldenrod crab spider‘s (Misumena vatia) yellow coloration. 3-Hydroxyanthranilic acid is an intermediate in the metabolism of tryptophan. It…
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Amygdalin and Laetrile
Amygdalin (from Ancient Greek: ἀμυγδαλή amygdalē “almond”) is a naturally occurring chemical compound found in many plants, most notably in the seeds (kernels) of apricots, bitter almonds, apples, peaches, cherries and plums, and in the roots of manioc. Amygdalin is classified as a cyanogenic glycoside, because each amygdalin molecule includes a nitrile group, which can be released as the toxic cyanide anion by the action of a beta-glucosidase. Eating amygdalin will cause it to release cyanide…
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Catecholamine (CA)
A catecholamine (abbreviated CA) is a monoamine neurotransmitter, an organic compound that has a catechol (benzene with two hydroxyl side groups next to each other) and a side-chain amine. Fitzgerald, P. A. (2011). “Chapter 11. Adrenal Medulla and Paraganglia”. In Gardner, D. G.; Shoback, D. (eds.). Greenspan’s Basic & Clinical Endocrinology (9th ed.). New York: McGraw-Hill. Retrieved October 26, 2011. Catechol, not to be confused with Catechin which is also sometimes called catechol, can be either…
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Farnesol and Farnesene
Farnesol is a natural 15-carbon organic compound which is an acyclic sesquiterpene alcohol. Under standard conditions, it is a colorless liquid. It is hydrophobic, and thus insoluble in water, but miscible with oils. Farnesol is produced from 5-carbon isoprene compounds in both plants and animals. Phosphate-activated derivatives of farnesol are the building blocks of possibly all acyclic sesquiterpenoids. These compounds are doubled to…
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A selection of apothecary jars.
Description A selection of apothecary jars. Four glass cylindrical drug jars with a parchment cover, labelled “Vitriol Alb.” (zinc sulphate), “OCUL CANCR” (Crab’s eyes – stones found in stomach of cray-fish as animal is about to change in its shell),”Sang Draco.V.” (Dragon’s blood), and “VITRIOL. COERUL.” (copper sulphate). Probably Spanish, 17th or 18th century. Wellcome…
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Nickernuts also known as sea pearls and eaglestones
Nickernuts or nickar nuts are smooth, shiny seeds from tropical leguminous shrubs, particularly Guilandina bonduc and Guilandina major, both known by the common name warri tree. C. bonduc produces gray nickernuts, and C. major produces yellow. Accordingly, these species are locally known in the Caribbean as “grey nickers” and “yellow nickers”. In the Caribbean, nickernuts are used to play mancala games such as oware. The nickernut is marble-like and good for other uses, such as…
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1911 Encyclopædia Britannica/Limonite
LIMONITE, or Brown Iron Ore, a natural ferric hydrate named from the Gr. λειμών (meadow), in allusion to its occurrence as “bog-ore” in meadows and marshes. It is never crystallized, but may have a fibrous or microcrystalline structure, and commonly occurs in concretionary forms or in compact and earthy masses; sometimes mammillated (covered with rounded mounds or lump, nipples or small protuberances),…
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Dicoumarol (Moldy Sweet Clover) Toxicosis in a Group of Holstein Calves
Yamini B, Poppenga RH, Emmett BW, Judge LJ. Dicoumarol (Moldy Sweet Clover) Toxicosis in a Group of Holstein Calves. Journal of Veterinary Diagnostic Investigation. 1995;7(3):420-422. doi:10.1177/104063879500700328 References 1. Alstad AD, Casper HH, Johnson LJ: 1985, Vitamin K treatment of sweet clover poisoning in calves. J Am Vet Med Assoc 187:729–731. 2. Blakley BR: 1985, Moldy sweet clover (dicoumarol) poisoning in…
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Bacterial diseases of hazelnut (Corylus avellana & Corylus spp.) and more
Bacterial blight Xanthomonas arboricola Scientific classification Domain: Bacteria Phylum: Pseudomonadota Class: Gammaproteobacteria Order: Xanthomonadales Family: Xanthomonadaceae Genus: Xanthomonas Species: X. arboricola Binomial name Xanthomonas arboricolaVauterin et al. 1995 Type strain ATCC 49083 Xanthomonas arboricola pv. corylina Xanthomonas arboricola is a species of bacteria. This phytopathogenic bacterium can cause disease in trees like Prunus, hazelnut and walnut. Hosts and symptoms Xanthomonas arboricola has a vast host range, however,…