Wako Pure Chemical Industries, Inc.

Yuko Nagamine

Shinji Satomura

Tokuji Ikenaka

Kaoru Omichi

.alpha.-Amylase activity can be determined rapidly and precisely by using as a substrate a modified oligo-saccharide wherein a benzylozymethyl group or a halo-methyl group is bonded to the C.sub.6 position of non-reducing-end glucose residue and the reducing-end glucose residue is bonded to a group which exhibits an optically measurable change upon cleavage. Processes for producing such a compound are also disclosed.

.alpha.-amylase assay using modified oligosaccharide and process for

.alpha.-Amylase activity can be determined rapidly and precisely by using as a substrate a modified oligosaccharide wherein a benzyloxymethyl group or a halomethyl group is bonded to the C.sub.6 position of non-reducing-end glucose residue and the reducing-end glucose residue is bonded to a group which exhibits an optically measurable change upon cleavage. Processes for producing such a compound are also disclosed.

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Toyonaka, Japan

Yuko Nagamine