The band between 1000 and 1100 [cm.sup.-1] (i.e., 1012.32 [cm.sup.-1] and 1009.26 [cm.sup.-1]) indicated the presence of O-substituted glucose residues and [beta]-linkages in the glucosidic
a-1, 4 linkages in the starch polymer is hydrolyzed in a randomly to produced maltose and glucose.
During the first step, beta-1,4 glucanase breaks the glucosidic
linkage to cellobiose.
Isomaltooligosaccharides (IMO) have an [alpha] 1 [right arrow] 6 glucosidic
linkage in their molecular structure (Kohmoto et al., 1992), and are mainly derived from starch by an enzymatic transgalactosylation reaction (Hayashi et al., 1994; Vetere et al., 2000).
Cellulose is a polysaccharide composed of anhydroglucose units, which are held together by [beta]-1,4 glucosidic
It is most interesting to notice that [Delta][H.sup.Sp(ether)] on this surface, having a DS of 1, drops by almost one third; substituting one out of three hydroxyl groups of the glucosidic
ring decreases its interaction ability by an equivalent fraction.
Baicalin, the glycoside of baicalein, showed a [[M + H].sup.+] ion at m/z 447, and cleavage of the glucosidic
bond formed the ion at m/z 271 in MS-MS spectra.
One unit of xylanase is defined as the amount of enzyme which liberates 0.5 [micro]mol of reducing sugar (expressed as xylose equivalents) from a cross-linked oat spelt xylan substrate in one minute; one unit of protease is defined as the amount of enzyme which liberates 1 Limol of phenolic compound (tyrosine equivalents) from a casein substrate per minute; one unit of protease is defined as the amount of enzyme which liberates 1 ^mol of glucosidic
linkages from a water insoluble cross-linked starch polymer substrate per minute.
[alpha]-Amylase is an endoglucosidase, that is, it does not require free ends of amylose chains for activity, but rather is capable of hydrolyzing internal [alpha]-1-4 glucosidic
Active pure compounds from this fraction were apigenin and luteolin and their glucosidic
forms; however, the aglyconic form was less active.
The NSP in barley are mainly [beta]-glucan, which has large portions of [beta]-1,4 or [beta]-1,3 glucosidic