Food Biochemistry and Food Processing (2 edition)

BLBS102-c32 BLBS102-Simpson March 21, 2012 14:2 Trim: 276mm X 219mm Printer Name: Yet to Come

Granule-bound

starch synthase

Overexpression of

GBSS I

No effect

Amylose increased

up to 25.5%

No effect

—

Kuipers et al. 1994

Soluble starch

synthase

Antisense inhibition

of SS III

No effect

Amylopectin chain

length altered,more P in starch

Granules cracked

with deep fissures

—

Abel et al. 1996,

Marshall et al.1996; Fulton et al. 2002

Soluble and granule-

bound starchsynthases

Antisense inhibition

of GBSS I, SS II& SS III

No effect

Less amylose,

shorteramylopectinchains

Concentric granules Freeze/thaw- stable

starch

Jobling et al. 2002,

Fulton et al. 2002

Starch branching

enzymes

Antisense inhibition

of SBE I and SBEII

Decreased yield

Amylose increased

to

>

70%, low

amylopectin,five-fold more Pin starch.

Granule morphology

altered

High amylose and

high P starch

Schwall et al. 2000

Starch water

dikinase (R1)

Antisense inhibition

of R1

No effect

Less P in starch

Not determined

Low P starch

Lorberth et al. 1998

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