Course Content
Terminology related to human nutrition
Relation of food and nutrition to health
Anti nutritional factors present in common foods
Nutritional deficiency diseases in developing countries and their prevention measures
Learn applied human nutrition with Braimy – B.Sc Agriculture
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  1. Toxic amino acids:

–  Lathyrus poison:cause d/s of spinal cord (lathyrism) causing crippling and permanent paralysis, neurotoxin from seeds of lathyrus sativus, BOAA(beta-N-oxalyl-amino-l-alanine).

  1. Toxic alkaloids:

  • Argimone contamination: in poppy seeds;sometimes mustard seeds, oils; alkaloids sanguinarine inhibits oxidation of pyruvic acid; pyruvic acid accumulates blood and cause dropsy.

  • Alkaloids in potatoes: exposed to light then sprouting develops to green due to solanine and chacomine, poisoning of GI, diarrhoea, vomiting, abdominal pain.

  • Cyanogenic glycosides: cassava, tapoica or sorghum; linamarin and lotausralin in cassava; taxiphyllin in bamboo shoots; amygdalin in almonds.

  1. Trypsin inhibitor:

– Active against pancreatic proteolytic enzymes

– Found in red gram, Bengal gram, cow pea, soyabean, sweet potato

  1. Haemagglutinins:

– Heat liable, from field beans and horse grams

– Haemolytic property more in green seeds and diminishes as the seed matures

– Agglutinin combine with cell lining of intestinal walls and interferes with absorption

– Nausea ,vommiting, diarrhoea.

  1. Flatulence factors:

– Large consumption of red gram, soyabean, lima beans, navy beans, black gram associated with production of gases and digestibility disorders. Soaking overnight reduces flatulence factors.

  1. Mycotoxins:

– aspergillus and penicillin are storage fungi; aflatoxin in cereals due to improper storage.

  1. Goitrogenic substances:

– Cabbage, mustard, rape due to glucosinolates (prevent thyroxin synthesis) and thiocyanates(reduce concentration of iodine).

  1. Cycads nuts:

– Cyasin affects CNS, remove by washing

  1. Mushroom poisoning:

Amanita, wild mushroom, fata,

  1. Favism:

Ingestion of pollen if fava beans cause haemolytic anaemia; due to def of enzyme G-6-P-D.

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