Availability Of Mono And Disaccharides

Table 2.1 lists the availability and bulk-quantity prices of the eight least expensive sugars—all well below about E10/kg—as compared to some sugar-derived, naturally occurring compounds and basic chemicals from petrochemical sources. The result is stunning, since the five cheapest sugars, some sugar alcohols, and

TABLE 2.1 Annual Production Volume and Prices of Simple Sugars and Sugar-Derived Alcohols and Acids as Compared to Some Petrochemically Derived Basic Chemicals and Solvents

World Productiona (metric t/year) Priceb (E/kg)

Sugars

Sucrose

149,900,000

0.25

D-Glucose

30,000,000

0.30

Lactose

295,000

0.60

D-Fructose

60,000

1.00

Isomaltulose

70,000

2.00

Maltose

3,000

3.00

D-Xylose

10,000

4.50

L-Sorbose

60,000

7.50

Sugar Alcohols

D-Sorbitol

650,000

1.80

Erythritol

30,000

2.25

Xylitol

30,000

5.00

D-Mannitol

30,000

8.00

Sugar-Derived Acids

Citric acid

1,500,000

1.00

D-Gluconic acid

100,000

1.40

L-Lactic acid

150,000

1.75

L-Tartaric acid

35,000

6.00

L-Ascorbic acid

80,000

8.00

Amino Acids

L-Glutamic acid

1,500,000

1.20

L-Lysine

740,000

2.00

Petrochemicals

Ethylene

90,000,000

0.40

Propylene

45,000,000

0.35

Benzene

23,000,000

0.40

Terephthalic acid

12,000,000

26

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