Three O–methyl anthocyanidin 3–O–β–D–glucopyranosides were isolated from bilberry extract on a large-scale basis together with two non O–methyl analogues. Anthocyanidin 3–O–β–D–galactopyranosides were removed from bilberry extract together with parts of anthocyanidin 3–O–α–L–arabinopyranosides after treatment with β–galactosidase. The remaining arabinopyranosides were removed by applying acid catalytic hydrolysis. The amounts of anthocyanins recovered as flavylium trifluoroacetic acid salt were as follows: 630 mg for petunidin 3–O–β–D–glucopyranoside, 423 mg for peonidin 3–O–β–D–glucopyranoside, 588 mg for malvidin 3–O–β–D–glucopyranoside, 877 mg for delphinidin 3–O–β–D–glucopyranoside, and 742 mg for cyanidin 3–O–β–D–glucopyranoside.

从越桔提取物中大规模分离了三种O-甲基花青素3 - O -β-D-吡喃葡萄糖苷和两种非O-甲基类似物。花青素-3- ø -β-d-吡喃半乳糖苷是从越橘提取物连同花青素-3-份除去ö与β半乳糖苷酶处理之后-α-L- arabinopyranosides。通过进行酸催化水解除去剩余的阿拉伯吡喃糖苷。花青素的量回收flavylium三氟乙酸盐如下：630毫克矮牵牛3- ö -β-d-D-吡喃葡萄糖苷，423毫克花青素-3- ö -β-d-D-吡喃葡萄糖苷，588毫克对二甲花翠素-3- ö–β–D–吡喃葡萄糖苷，对于Delphinidin 3 – O –β–D–吡喃葡萄糖苷为877 mg，对于花青素3 – O –β–D–吡喃葡萄糖苷为742 mg 。