L-Malic acid Cas:97-67-6
Helu Helu | XD91143 |
inoa mea kūʻai | L-Malic acid |
CAS | 97-67-6 |
ʻĀpana Molekala | HOOCCH(OH)CH2COOH |
Kaumaha Molecular | 134.09 |
Nā kikoʻī mālama | Ambient |
Kānāwai Kūʻai Kūlike | 29181998 |
Huahana Huahana
Ka nana aku | ʻO ka pauka kristal keʻokeʻo |
ʻO Assay | 99% min |
Ka Mahana Waihona | +20 ° C |
Lae hehee | 101-103 °C (kukui) |
Kahuli kiko'ī | -2 º (c=8.5, H2O) |
ʻO ka mānoanoa | 1.60 |
Hōʻike Hōʻike | -6.5 ° (C=10, Acetone) |
Kuhikuhi uila | 220 °C |
Ka hikiwawe | H2O: 0.5 M ma 20 °C, akaka, kala ole |
Ka hoʻoheheʻe wai | hikiwawe |
Nā waiwai kino a me ke kemika o ka waika L-malic
ʻO ka waikawa Malic, i ʻike ʻia ʻo 2-hydroxysuccinic acid, ʻelua stereoisomers ma muli o kahi ʻātoma kalapona asymmetric i loko o ka mole.Ma ke ʻano, aia ma nā ʻano ʻekolu, ʻo ia ka D-malic acid, L-malic acid a me kāna hui ʻana i ka DL-malic acid.ʻO ke aniani keʻokeʻo a i ʻole ka pauka crystalline, hygroscopicity ikaika, hiki ke hoʻoheheʻe ʻia i ka wai a me ka ethanol.Loaʻa i kahi ʻono ʻawaʻawa ʻoluʻolu.Hoʻohana nui ʻia ka Malic acid i nā ʻoihana meaʻai a me nā lāʻau lapaʻau.
ʻO ka hoʻohana ʻana i ka huahana L-malic acid
【Hoʻohana】 Hoʻohana ʻia i ka hana ʻana i nā esters;hoʻohana ʻia i nā mea paʻakikī a me nā mea ʻono.Wahi a nā ʻōlelo a koʻu ʻāina ʻo GB 2760-90, hiki ke hoʻohana ʻia i nā ʻano meaʻai āpau.Ma ke ʻano he mea ʻawaʻawa, hiki ke hoʻohana ʻia ma kahi o ka citric acid (ma kahi o 80%), ʻoi aku hoʻi no ka jelly a me nā meaʻai huaʻai.ʻO kēia huahana ka hana o ka mālama ʻana i ka waihoʻoluʻu o nā hua maoli, a hiki ke hoʻohana ʻia e like me ke kōkua unuhi no ka pectin, kahi mea hana no ka hoʻoulu ʻana i ka hū, no ka hoʻokumu ʻana i ka soy paʻakai ʻole a me ka vīnega, hoʻomaikaʻi i ka ʻono o nā pickles, a emulsion stabilizer no ka margarine, ka mayonnaise, etc.Hoʻohana nui ʻia i nā preservatives like ʻole, nā mea hoʻonaninani a me nā mea hoʻohui hui ʻē aʻe.
(1) ʻOihana meaʻai: Hoʻohana ʻia ia e hana a hoʻomākaukau i nā mea inu, ka hau, ka wai hua, a hiki ke hoʻohana ʻia i ka hana ʻana i ka candy, jam, etc. He hopena antibacterial a antiseptic i ka meaʻai.Hiki ke hoʻohana ʻia e hoʻoponopono i ka pH o ka fermentation yoghurt a wehe i ka tartrate i ka hana waina.
(2) ʻOihana paka: Hiki i nā mea hoʻoheheʻe malic acid (e like me nā esters) ke hoʻomaikaʻi i ka ʻono paka.
(3) ʻOihana lāʻau lapaʻau: ʻO nā ʻano papa āpau a me nā syrups me ka malic acid hiki ke loaʻa i kahi ʻono huaʻai, kahi kūpono i ka absorption a me ka laha ʻana i ke kino.
(4) ʻOihana kemika i kēlā me kēia lā: He mea hoʻopili paʻakikī maikaʻi a me ka mea hana ester.Hoʻohana ʻia ia i ka hana ʻana i ka toothpaste, ka hoʻomaʻemaʻe ʻana i ka niho hoʻomaʻemaʻe papa, ka hana ʻala synthetic, a me nā mea ʻē aʻe.