Coix seed and Job's tears are the same thing, containing a large number of nutrients.

Morphological features: annual or perennial; culms erect, 1-1.5 meters high. Leaves striped lanceolate, up to 30 cm long, 1.5-3 cm wide, apically long acuminate, margins scabrous; leaf sheaths smooth, as long as or slightly shorter than internodes, ligules stiff. Racemes axillary in bundles; spikelets unisexual; male spikelets borne in the upper part of the raceme, imbricate and arranged, drawn from the bony moniliform involucre.

Female spikelets are located in the lower part of the raceme, enclosed in the involucre, two to three borne in one section, only one bearing fruit. The glumes are enclosed in a hard involucre, ovate or ovoid-globose. Flowering from July to September, fruiting from September to October.

Extended information:

Chemical composition

Kernel seeds contain Coix seed esters, crude protein 13% ~ 14%, lipids 2% ~ 8%. Lipids in triacylglycerol 61% ~ 64%, diacylglycerol 6% ~ 7%. Monoacylglycerol 4%, sterol esters 9%, free fatty acids 17% to 18%. In the triacylglycerol linoleic acid content of up to 25% to 28%, in the free fatty acid linoleic acid content of 27% to 28%, free fatty acids and palmitic acid.

Stearic acid, cis-8-octadecenoic acid is oleic acid, etc. [1,2]. Acylglycerol with anti-tumor effect of α-monooleic acid glycerol ester, sterol esters with pro-ovulatory effect of cis -, trans - feruloyl soybean stanol and cis -, trans - feruloyl rapeseed oil stanol and so on. The seed kernel also contains glucan and acidic polysaccharides CA-1, CA-2 and hypoglycemic Coix lacryma polysaccharides A, B and C.

Baidu Encyclopedia - Coix lacryma