100% ntshiab organic ntuj bulgarian sawv tseem ceeb roj 10ml

Rose, tseem hu ua Suav Rose, belongs rau genus Rosa ntawm tsev neeg Rosaceae. Nws yog tsim nyob rau hauv Bulgaria, Qaib ntxhw, Morocco, Russia; Gansu, Shandong, Beijing, Sichuan, Xinjiang thiab lwm qhov chaw hauv Suav teb. Cov paj tshiab tuaj yeem siv los ua cov roj tseem ceeb los ntawm chav distillation. Cov roj yield yog feem ntau 0.02% ~ 0.04%. Muaj ntau ntau yam ntawm roses, tab sis cov tseem ceeb uas yuav siv tau los ua txuj lom yog wrinkled roses, damask roses, centifolia roses thiab dub liab roses. Cov paj tshiab yuav tsum tau ua tiav hauv 1 teev tom qab xaiv. Rose roj yog lub teeb daj mus rau daj kua nrog ib tug txheeb ze ntom ntawm 0.849 ~ 0.857, ib tug refractive index ntawm 1.452 ~ 1.466, ib tug optical rotation ntawm -2. ~-5., tus nqi acid ntawm 3, thiab tus nqi ester ntawm 27