This purified product will not be intact gDNA, but rather fragments with high molecular weight fragments up to 50kDa. In order to obtain minimally fragmented gDNA you will likely need a protocol that utilized phenol chloroform extraction such as the one linked below.
https://www.protocols.io/view/phenol-chloroform-dna-extraction-optimized-for-hmw-b6ysrfwe.html





