Kungani isilinganiso se-cistrans singenye yezincazelo ezibaluleke kakhulu okufanele zibuyekezwe kwiSitifiketi Sokuhlaziywa kwe-Milk Lactone?

Lokhu kungena ezicini ezithile zamakhemikhali ezichaza ikhwalithi kanye nobuntu be-Milk Lactone.

Nasi incazelo eningiliziwe:

1. I-Chemistry: Kungani i-Isomerism Ibalulekile Kuma-Lactone

Kuma-lactone afana ne-δ-Decalactone, igama elithi “cis” kanye nelithi “trans” alibhekiseli ekubambisaneni okuphindwe kabili (njengoba kwenza kuma-molecule afana nama-fatty acid) kodwa libhekisela ekwakhekeni kwe-stereochemistry okuhlobene ezindaweni ezimbili ze-chiral eringini. Isakhiwo seringini sidala isimo lapho ukuqondiswa kwendawo kwama-athomu e-hydrogen kanye nochungechunge lwe-alkyl maqondana nendiza yeringini kuhluka khona.

· i-cis-Isomer: Ama-athomu e-hydrogen kuma-athomu e-carbon afanele asohlangothini olufanayo lwendilinga. Lokhu kudala isimo esithile nesilinganiselwe.

· i-trans-Isomer: Ama-athomu e-hydrogen asezinhlangothini eziphambene zendilinga yendandatho. Lokhu kudala isimo sama-molecule esihlukile, esivame ukungacindezelwa kakhulu.

Lokhu kwehluka okuncane ngesimo kuholela ekwehlukeni okukhulu endleleni i-molecule esebenzisana ngayo nama-smell receptors, ngaleyo ndlela, nephrofayili yayo yephunga.

2. Ukulingana Kwemvelo vs. KokwenziwaI-Lactone yobisi

Umthombo Ojwayelekile we-cis Isomer Proportion I-trans ejwayelekile Isomer Proportion Isizathu Esiyinhloko

Okwemvelo (kusuka kubisi) > 99.5% (Ngokuphumelelayo 100%) < 0.5% (Kuyalandela noma akukho) Indlela yokwenza i-enzyme enkomeni ihlukile, ikhiqiza kuphela ifomu (R) eliholela ku-cis-lactone.

Okwenziwayo ~70% – 95% ~5% – 30% Izindlela eziningi zokwenziwa kwamakhemikhali (isb., ezivela kumakhemikhali e-petrochemicals noma i-ricinoleic acid) azifani ngokuphelele, okuholela engxubeni yama-isomers (i-racemate). Isilinganiso esiqondile sincike enkambisweni ethile kanye nezinyathelo zokuhlanza.

3. Umthelela Wezinzwa: Kungani i-cis Isomer Ibalulekile

Le ngxenye ye-isomer ayiyona nje i-chemical curiosity; inomthelela oqondile nonamandla ekhwalithini yezinzwa:

· cis-δ-Decalactone: Lena yi-isomer enephunga eliyigugu kakhulu, elinamandla, elikhilimu, elifana nepentshisi, nelinobisi. Yinhlanganisela ethinta uhlamvu lwe-I-Lactone yobisi.

· i-trans-δ-Decalactone: Le isomer inephunga elibuthakathaka kakhulu, elingavamile, futhi ngezinye izikhathi ngisho nephunga "eliluhlaza" noma "elinamafutha". Ayinikezi lutho oluningi kuphrofayili efiselekayo yokhilimu futhi empeleni inganciphisa noma iphazamise ubumsulwa bephunga.

4. Imiphumela Yomkhakha Wokunambitheka Nephunga

Isilinganiso se-cis kuya ku-trans isomer siwuphawu olubalulekile lwekhwalithi nezindleko:

1. Ama-Lactone Emvelo (avela kuDairy): Ngenxa yokuthi angama-cis angu-100%, anephunga eliyiqiniso, elinamandla, nelifiselekayo kakhulu. Futhi abiza kakhulu ngenxa yenqubo ebizayo yokukhipha emithonjeni yobisi.

2. Ama-Lactone Okwenziwa Asezingeni Eliphezulu: Abakhiqizi basebenzisa amasu amakhemikhali noma ama-enzyme athuthukile ukuze bandise isivuno se-cis isomer (isb., ukufinyelela ku-95%+). I-COA ye-lactone yokwenziwa esezingeni eliphezulu ivame ukucacisa okuqukethwe kwe-cis okuphezulu. Lena ipharamitha ebalulekile abathengi abayihlolayo.

3. Ama-Lactone Ajwayelekile Okwenziwa: Okuqukethwe kwe-cis okuphansi (isb., 70-85%) kubonisa umkhiqizo ongacwengisiswanga kahle. Uzoba nephunga elibuthakathaka nelingelona elangempela futhi usetshenziswa ezinhlotsheni lapho izindleko ziwumshayeli oyinhloko futhi iphunga lekhwalithi ephezulu lingabalulekile.

Isiphetho

Ngamafuphi, isilinganiso asiyona inombolo eqondile kodwa siyinkomba ebalulekile yemvelaphi nekhwalithi:

· Ngokwemvelo, isilinganiso sithambekele kakhulu ku->99.5% cis-isomer.

· Ekuhlanganiseni, isilinganiso siyahlukahluka, kodwa okuqukethwe okuphezulu kwe-cis-isomer kuhlobene ngqo nephunga elinokhilimu eliphakeme, lemvelo, nelinamandla kakhulu.

Ngakho-ke, lapho kuhlolwa isampula yeI-Lactone yobisi, isilinganiso se-cis/trans singenye yezincazelo ezibaluleke kakhulu okufanele zibuyekezwe ku-Certificate of Analysis (COA).