Lokhu kungena kumakhemikhali athile achaza ikhwalithi nohlamvu lweMilk Lactone.

Nansi incazelo enemininingwane:

1. I-Chemistry: Kungani I-Isomerism Ibalulekile kuma-Lactones

Kuma-lactone afana no-δ-Decalactone, igama elithi “cis” nelithi “trans” alibhekiseli kusibopho esikabili (njengoba lenza kumamolekyuli afana nama-acids anamafutha) kodwa ku-stereochemistry ehlobene ezindaweni ezimbili ze-chiral eringini. Isakhiwo sendandatho sidala isimo lapho umumo wendawo wama-athomu e-hydrogen kanye neketango le-alkyl elihlobene nendiza eyindandatho kwehluka.

· cis-Isomer: Ama-athomu e-hydrogen kuma-athomu ekhabhoni afanele asohlangothini olufanayo lwendiza eyindilinga. Lokhu kudala umumo othize, obambezeleke kakhulu.

· I-trans-Isomer: Ama-athomu e-hydrogen asezinhlangothini eziphambene zendiza eyindilinga. Lokhu kudala umumo wamangqamuzana ohlukile, ovamise ukucindezelwa kancane.

Lo mehluko ocashile wokuma uholela kumehluko omkhulu endleleni i-molecule exhumana ngayo nama-receptors ephunga, futhi ngaleyo ndlela, iphrofayili yayo yephunga.

2. I-Proportion in Natural vs. SyntheticI-Lactone yobisi

Umthombo I-cis Ingxenye ye-Isomer Ejwayelekile Isizathu Esiyinhloko Sengxenye Ye-Isomer

Yemvelo (kusuka eDairy) > 99.5% (Ngempumelelo 100%) < 0.5% (Trace noma ungekho) Indlela ye-enzymatic biosynthesis enkomeni i-stereospecific, ikhiqiza kuphela (R) -form eholela ku-cis-lactone.

I-Synthetic ~ 70% - 95% ~5% - 30% Izindlela eziningi zokuhlanganisa amakhemikhali (isb, kusukela kumakhemikhali e-petrochemicals noma i-ricinoleic acid) azicaciswanga ngokuphelele, okuholela engxubeni yama-isomer (i-racemate). Isilinganiso esiqondile sincike kunqubo ethile kanye nezinyathelo zokuhlanza.

3. Umthelela Wezinzwa: Kungani I-cis Isomer Ibalulekile

Le ngxenye ye-isomer ayiyona nje ilukuluku lamakhemikhali; inomthelela oqondile futhi onamandla kukhwalithi yezinzwa:

· cis-δ-Decalactone: Lesi isomemu enephunga elimnandi kakhulu, eliqinile, elikhilimu, elifana nepentshisi, nelinobisi. Kuyinhlanganisela yethonya lomlingiswaI-Lactone yobisi.

· trans-δ-Decalactone: Le isomeri inesici esibuthakathaka kakhulu, esingaphansi, futhi ngezinye izikhathi iphunga “eliluhlaza” noma “elinamafutha”. Inikela kancane kakhulu kuphrofayela efiselekayo enokhilimu futhi inganciphisa noma ihlanekezele ubumsulwa bephunga.

4. Imithelela Embonini Ye-Flavour & Fragrance

Ingxenye ye-cis kuya ku-trans isomer iwumaka okhiye wekhwalithi nezindleko:

1. Ama-Lactones Emvelo (asuka eDairy): Ngenxa yokuthi angama-cis angu-100%, anephunga eliyiqiniso kakhulu, elinamandla, nelifiselekayo. Zibuye zibize kakhulu ngenxa yenqubo ebizayo yokukhipha emithonjeni yobisi.

2. Ama-Lactones Okwenziwa Kwekhwalithi Ephezulu: Abakhiqizi basebenzisa amakhemikhali athuthukile noma amasu enzymatic ukuze bakhulise isivuno se-cis isomer (isb, ukuzuza u-95%+). I-COA ye-premium synthetic lactone izovame ukucacisa okuqukethwe kwe-cis ephezulu. Lena ipharamitha ebalulekile abathengi abayihlolayo.

3. Ama-Lactones Okwenziwa Ajwayelekile: Okuqukethwe kwe-cis okuphansi (isb, 70-85%) kubonisa umkhiqizo ongacolisisiwe. Izoba nephunga elibuthakathaka, elingelona iqiniso elincane futhi isetshenziswa ezinhlelweni lapho izindleko ziwumshayeli oyinhloko futhi iphunga lekhwalithi ephezulu lingabalulekile.

Isiphetho

Kafushane, ingxenye ayiyona inombolo engashintshi kodwa iyinkomba eyinhloko yomsuka nekhwalithi:

· Emvelweni, ingxenye igwegwile ukuze ibe >99.5% cis-isomer.

· Ekuhlanganiseni, ingxenye iyahlukahluka, kodwa okuqukethwe kwe-cis-isomer okuphezulu kuhlobana ngokuqondile nephunga elimnandi elinokhilimu eliphakeme kakhulu, elingokwemvelo, neliqine kakhulu.

Ngakho-ke, lapho kuhlolwa isampula yeI-Lactone yobisi, isilinganiso se-cis/trans singenye yezicaciso ezibaluleke kakhulu okufanele zibuyekezwe kuSitifiketi Sokuhlaziya (COA).