Table I.

Changes in soluble and insoluble protein with advancing tuber age

Tuber AgeProtein Fraction
SolubleInsolubleTotal
months mg protein g−1 fresh wt
 6 3.75 0.103 3.85
18 3.52 0.186 3.73
30 2.64 0.192 2.83

Soluble and insoluble protein were quantified in 30,000gsupernatants and destarched pellets, respectively. Insoluble protein was solubilized with Triton X-100. Linear trends were significant (P < 0.01) for soluble, insoluble, and total protein.