Appeal No. 1997-1068
Application 08/161,635
suspension of pectin starting material having a degree of
esterification greater than about 60% with a cation-containing
preparation to obtain at least a first fraction having a
higher degree of calcium sensitivity and a second fraction
having a lower degree of calcium sensitivity than said pectin
starting material wherein the cation-containing preparation
comprises a cation that is a metal ion derived from salts
selected from the group consisting of alkaline earth metal
salts, alkali metal salts, transition metal salts, and
mixtures thereof.
The references of record relied upon by the examiner are:
Hedges et al. (Unilever A1) 0,432,835 A1 June 19, 1991
Hedges et al. (Unilever B1) 0,432,835 B1 March 2,
1994
A prior art reference discussed by appellants is:
Rolin et al. (Rolin) WO 89/12648 December 28,
1989
The appealed claims stand rejected under 35 U.S.C. § 103
as unpatentable over Unilever A1 or Unilever B1. We cannot
sustain the stated rejections.
Pectins are high molecular weight hydrocolloidal
substances related to carbohydrates which are found in varying
proportions in fruits and plants and consist primarily of
partially methoxylated galacturonic acid units (i.e.,
carboxylic acid units) joined in long chains. Typically,
2
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