Intshayelelo kwiDamascenone Isomers
I-Damascenone kunye ne-β-Damascenone zii-isomers ezimbini ezibalulekileyo ze-chemical compound efanayo, zombini zisetyenziswa kakhulu kwishishini le-fragrance and flavour. Nangona zabelana nge-molecular formula efanayo (C₁₃H₁₈O), ulwakhiwo lwazo lweekhemikhali olwahlukileyo lubangela umahluko omkhulu kwiiprofayili ze-aroma kunye nokusetyenziswa kwazo. Eli nqaku libonelela ngothelekiso oluneenkcukacha lwale mixed fragrance compounds zimbini ezixabisekileyo.
Umahluko kwiSakhiwo seeKhemikhali
Umahluko ophambili phakathi kweDamascenone (ngesiqhelo i-α-Damascenone) kunye ne-β-Damascenone ukwizakhiwo zazo zemolekyuli:
·α-Damascenone: Eyaziwa ngekhemikhali njenge-(E)-1-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2-buten-1-one, kunye ne-double bond efumaneka kwindawo ye-α (ikhabhoni yesibini) yeringi ye-cyclohexene
·β-Damascenone: Ngokwesakhiwo (E)-1-(2,6,6-trimethyl-1,3-cyclohexadien-1-yl)-2-buten-1-one, enezibopho eziphindwe kabini kwiindawo ze-β (iikhabhoni zoku-1 nezesi-3) zeringi ye-cyclohexadiene
·I-Stereochemistry: Zombini zikhona njenge-(E) isomers (trans-configuration), nto leyo echaphazela kakhulu iimpawu zazo zokuhombisa
Uthelekiso lweePropati zoMzimba
| Ipropati | α-Damascenone | i-β-Damascenone |
| Uxinano | 0.942 g/cm³ | 0.926 g/cm³ |
| Indawo yokubilisa | 275.6°C | 275.6°C |
| Isalathiso sokuKhangela | 1.5123 | 1.49 |
| Inkangeleko | Ulwelo olungenambala ukuya kolutyheli obukhanyayo | Ulwelo olungenambala ukuya kolutyheli obukhanyayo |
| Ukunyibilika | Ayinyibiliki emanzini, inyibilika kwizinyibilikisi zendalo | Ayinyibiliki emanzini, inyibilika kwizinyibilikisi zendalo |
| Indawo yokuflasha | >100°C | 111°C |
Umahluko kwiProfayili enuka kamnandi
Iimpawu zevumba le-α-Damascenone
·Inqaku eliphambili: Iziqhamo ezimnandi, eziluhlaza, ezineentyatyambo
·Amanqaku esibini: Iintsingiselo zemithi kunye neeberry
·Ingcamango iyonke: Intsonkothile ngakumbi ngomgangatho omtsha, ofana nesityalo
Iimpawu zevumba lika-β-Damascenone
·Inqaku eliPhambili: I-character enamandla efana ne-rose
·Amanqaku esibini: I-Plum, i-grapefruit, i-raspberry, kunye namanqaku afana neti
·Imbonakalo iyonke: Inamandla ngakumbi, ifudumele, isasazeke ngcono kwaye ihlala ixesha elide
Umahluko kwiSicelo
Izicelo eziphambili ze-α-Damascenone
Iziqholo ezikumgangatho ophezulu: Zongeza ubunzima kunye nobunzulu kwizinto eziqholiweyo
Incasa yokutya: Ivunyiwe njengesongezelelo sokutya (GB 2760-96)
Incasa yecuba: Iphucula ukuguda kweemveliso zecuba
Izicelo eziphambili ze-β-Damascenone
Ishishini leziqholo: Inxalenye ephambili ye-rose accords kwiivumba ezintle
Izongezo zokutya: Zisetyenziswa kwi-confectionery, kwiimpahla ezibhakiweyo, nakwiziselo
Incasa yecuba: Isithako esiphambili kwiincasa ezininzi zecuba
Iimveliso zeti: Ivumba elikhethekileyo elifumaneka kwiiti ezimnyama ezinevumba lobusi
Iziganeko zendalo kunye nokubaluleka kwezorhwebo
Imithombo Yendalo: Zombini zivela ngokwendalo kwioyile yerose, iti emnyama, kunye neoyile yeraspberry
Ukubaluleka kwezorhwebo: I-β-Damascenone ilawula imarike ngenxa yeempawu zayo zevumba elimnandi
Umahluko woXinzelelo: I-β-isomer ihlala ikhona kwiindawo eziphezulu kwiimveliso zendalo
Ukwenziwa kunye neMveliso
·Iindlela zokwenziwa kwezinto: Zombini zinokuveliswa nge-Grignard reaction ye-β-cyclocitral ilandelwe yi-oxidation
··Inkqubo yoMveliso: Ukwenziwa kwe-α-Damascenone kuyinkimbinkimbi kwaye kuyabiza kakhulu
·Ukufumaneka kweMarike: i-β-Damascenone ifumaneka ngokubanzi kwaye ibiza kancinci
Isiphelo
Nangona i-α-Damascenone kunye ne-β-Damascenone zabelana ngezakhiwo ezifanayo zeekhemikhali, indawo ezikuyo iibhondi zazo eziphindwe kabini iphumela kwiiprofayili ezahlukeneyo zevumba elimnandi kunye nokusetyenziswa kwalo. I-β-Damascenone, eneempawu zayo zentyatyambo ezifana ne-rose kunye nokusasazwa kwayo okuphezulu, ibaluleke kakhulu kwezorhwebo. Nangona kunjalo, iprofayili yevumba eliyinkimbinkimbi ye-α-Damascenone igcina ixabiso layo kwiindlela ezithile ezikumgangatho ophezulu. Ukuqonda olu mahluko kuvumela abenzi beziqholo kunye neencasa ukuba basebenzise i-isomer nganye ngokufanelekileyo kwiindlela zabo zokwenziwa.
Ixesha lokuthumela: Novemba-10-2025