Carbohydrates - Chemical Structure (Page 2 of 3)

Carbohydrates - Chemical Structure (Page 2 of 3):



'via Blog this'Relative sweetness of various carbohydrates

fructose	173
invert sugar*	120
HFCS (42% fructose)	120
sucrose	100
xylitol	100
tagatose	92
glucose	74
high-DE corn syrup	70
sorbitol	55
mannitol	50
trehalose	45
regular corn syrup	40
galactose	32
maltose	32
lactose	15

* invert sugar is a mixture of glucose and fructose found in fruits

A solvent system for delipidation of plasma or serum without protein precipitation.

A solvent system for delipidation of plasma or serum without protein precipitation.:



'via Blog this'A technique has been developed which attains in 30 minutes complete removal of triglyceride, cholesterol, phospholipid, and unesterified fatty acids from plasma without protein denaturation. Plasma is agitated at room temperature with a mixture of butanol and di-isopropyl either in a 40:60 (v/v) ratio. The plasma proteins, including the apolipoproteins, remain in solution in the aqueous phase, while the organic phase contains the dissolved lipids. The phases can easily be separated by low speed centrifugation. Different lipids are simultaneously extracted, but the rate of extraction is most rapid for unesterified fatty acids, followed by triglyceride, cholesterol, and phospholipid at, respectively, decreasing rates. Selective extraction of unesterified fatty acids, triglyceride and total cholesterol can be achieved by di-isopropyl ether alone. Ionic strength and pH are not altered by these procedures.