Abstract: The present disclosure discloses a marker for screening and distinguishing NFC apple juice based on non-targeted metabolomics and use thereof, relating to the technical field of distinguishing of juice. The marker for distinguishing NFC apple juice disclosed in the present disclosure is selected from the following molecules: gallocatechin, catechin, taxifolin, p-hydroxybenzaldehyde, 5-methoxysalicylic acid, azelaic acid, caffeic acid, chlorogenic acid, epicatechin, eriodictyol, ferulic acid, isoquercitrin, naringenin, n-fructosyl isoleucine, p-coumaraldehyde, p-coumaric acid, phloretin, phlorizin, procyanidin B1, quercetin-3-O-galactoside and rutin. The above markers may be used for distinguishing the NFC apple juice and the FC apple juice, and have relatively high accuracy.

Abstract: A massage machine includes a casing unit, a drive device, a transmission mechanism, and two massage plate units. Two ends of the transmission mechanism are linked with the massage plate units, respectively. The drive device drives the transmission mechanism. The transmission mechanism and the drive device are disposed in the casing unit. The massage plate units are disposed on the casing unit. The massage machine uses a single drive device to drive the transmission mechanism, so that the transmission mechanism can link the two massage plate units to massage a user.

Abstract: A foot massage apparatus includes a housing assembly, a driving mechanism, a front rotating member, a middle rotating member, and a rear rotating member. The middle rotating member is provided with a pivot shaft. An upper end of the pivot shaft is connected with a middle massage head. A lower end of the pivot shaft is provided with an elastic member. When different users use the foot massage apparatus, the middle massage head driven by the pivot shaft can be always in contact with the user's arch for massage. Therefore, the foot massage apparatus can meet the use requirements of different users, and make the user comfortable for massage.