海南蜜柚品质检测

选择成熟度一致的海南主栽蜜柚品种‘红心蜜柚’与‘无籽蜜柚’进行品质分析.分别检测其可溶性固形物(TSS)、可滴定酸、维生素C、出汁率、可食率、单果重、农药残留.结果表明:‘红心蜜柚’与‘无籽蜜柚’rss含量在8％～12％之间;维生素C含量在0.3-0.6 g/L之间;出汁率在56％-68％之间;可食率在52％-68％之间;单果重在1 kg～2.5 kg之间.两个品种的品质差别主要在可滴定酸上,且‘红心蜜柚’可滴定酸略高于‘无籽蜜柚’.仅在2个品种蜜柚果皮中检测出低浓度的毒死蜱和吡虫啉残留,果肉中7种农药残留均低于检出限,因此在海南境内生产的蜜柚均可安全食用.

Quality Detection of Hainan Honey Pomelo

Quality analysis was performed to major cultivars,‘Hongxin pomelo’ and ‘Wuzi pomelo’ with uniform maturity.Total soluble solid (TSS),titratable acid,vitamin C,juice yield,edible rate,single-fruit weight and pesticide residues of the 2 cultivars were detected.The results showed that:the TSS contents of ‘Hongxin pomelo’ and ‘Wuzi pomelo’ were in the range of 8％-12％,the vitamin C contents were in the range of 0.3-0.6 g/L,the juice yields were in the range of 56％-68％,the edible rates were in the range of 52％-68％,and the single-fruit weights were in the range of 1-2.5 kg.The titratable acid content was higher in ‘Hongxin pomelo’ than in ‘Wuzi pomelo’.Only Dursban and imidacloprid were detected at low concentrations in pericarp,and the residues of the 3 pesticides were all lower than their detection limits.Therefore,honey pomelo produced in Hainan all could be ate safely.