Taobao Marketplace, China’s biggest online shopping platform, has introduced a new voice search feature catering to older users speaking in regional dialects rather than the official language of Mandarin, as the Alibaba Group Holding subsidiary seeks to boost user loyalty amid weakening consumption. Shoppers looking for items on the e-commerce platform can tap the microphone logo on the app’s search box and speak their search request, according to a video published on Taobao’s account on microblogging site Weibo on Tuesday. The system can recognise the dialects of Tianjin, Shandong, Henan, Hebei and northeast China, according to Taobao, whose parent Alibaba…