Mafi cikakken ilimin zafin cakulan a cikin tarihi ya shahara, saboda haka zaku iya tattara shi ku kalli shi a hankali!

Wannan labarin busasshe ne, kuma zai amfane ku da yawa bayan karanta shi!

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Me yasa cakulan ke buƙatar fushi?

Ana yin cakulan daga tsaba na itacen cacao.Ana busasshen kokon, a gasa su don samun waken koko, wanda ke ɗauke da kitsen kusan kashi 51% zuwa 55%, wanda ake kira “man shanun koko”.

Man shanun koko man ne mai sihiri sosai.Ya ƙunshi nau'in fatty acid iri-iri, kuma rabonsa ya bambanta da sauran kitse.Kamar yadda aka nuna a cikin hoton da ke ƙasa, ana kwatanta madaidaicin ma'aunin kitsensa da man shanu, man shanu da sauran kitse.Yana da tsayi sosai.Yana fara yin laushi a digiri 28 na ma'aunin celcius, kuma ƙaƙƙarfan abun ciki na sauri ya juya ya zama ruwa a ma'aunin Celsius 33.

Me yasa cakulan zai iya kasancewa da ƙarfi da ƙarfi a cikin ɗaki, kuma yana da ɗanɗano lokacin da aka cije shi, amma yana narkewa a baki?

Me yasa cakulan zai iya kasancewa da ƙarfi da ƙarfi a cikin ɗaki, kuma yana da ɗanɗano lokacin da aka cije shi, amma yana narkewa a baki?

Ita ce kunkuntar wurin narkewar man shanun koko wanda ke kusa da zafin jikin ɗan adam wanda ke sanya ɗanɗanon cakulan.

Haɗin zafin jiki mara kyau!Ta yaya za a iya jin cewa kasancewar cakulan shine don gamsar da sha'awar ɗan adam na abinci?

Musamman, man shanu na koko yana da nau'i-nau'i daban-daban na nau'i na nau'i na crystalline.

Gabaɗaya akwai nau'ikan gama gari guda 4, wato γ, α, β', β.Ƙarƙashin yanayin zafin jiki daban-daban, ana nuna fasalin fasalin crystal a cikin adadi mai zuwa:

Matsayin narkewar nau'in crystal shine 16 ~ 18 ℃, wanda ba shi da kwanciyar hankali sosai, kuma zai canza zuwa nau'in α cikin kusan daƙiƙa 3.Jahilci.

Ana nuna sifofin sauran lu'ulu'u uku a cikin hoton da ke ƙasa:

tempering cakulanα-nau'in lu'ulu'u (nau'in I da II): wurin narkewa 17 ~ 23 ℃, zai canza zuwa nau'in crystal a cikin sa'a ɗaya a zafin jiki.Rubutun yana da taushi, mai rauni kuma mai sauƙin narkewa.

β'-nau'in lu'ulu'u (nau'in III da IV): Matsayin narkewa 25 ~ 28 ℃, zai canza zuwa nau'in crystal a wata mai zuwa a yanayin zafi.Rubutun yana da wuya, ba mai karye ba, kuma mai sauƙin narkewa.

Mafi kwanciyar hankali nau'in lu'ulu'u na β-nau'in (nau'in V da nau'in VI) suna da ma'aunin narkewa na 33 ~ 36 ° C, tare da nau'in rubutu mai wuya da gatsewa, da yanayin narkewa kusa da zafin jikin mutum.Koyaya, mafi kyawun barbashi nau'in kristal VI tare da mafi girman narkewar suna da ɗanɗano kuma suna ɗanɗano mara kyau, kuma zasu haifar da fure mai kitse a saman (wannan shine dalilin da ya sa Layer na "hoarfrost" zai kasance akan saman cakulan bayan dogon lokaci. lokaci), don haka yana da ƙarin lu'ulu'u masu nau'in nau'in V waɗanda suke da ƙarfi kuma suna da kamanni mai sheki sun zama mafi kyawun tsarin mai.

2Manufar daidaita yanayin zafi shine don narke cakulan da daidaita zafin jiki don samun mafi kyawun polymorphism mai kama da juna, yana ba cakulan ɗanɗano mai ɗanɗano, ɗanɗano mai siliki da kyakkyawan bayyanar mai sheki.

Komawa yanayin zafi hudu da aka ambata a sama, me yasa wuri na biyu na sanyaya na cakulan mai ɗaci har zuwa 28 ° C?

Shi ne don kauce wa samuwar wasu lu'ulu'u marasa so a cikin man shanu na koko, wanda zai shafi ingancin cakulan da aka gama.

Bugu da ƙari, manna koko da sukari a cikin cakulan kuma za su yi tasiri a kan tsarin crystallization, amma in mun gwada da magana, ba shi da girma kamar daidaitawar yanayin zafi, don haka ba zan ambaci shi a nan ba har yanzu.

Don haka, ta yaya za a hanzarta sanyaya don samar da lu'ulu'u masu siffar V?

Yaya ya kamata a daidaita yanayin zafi?

Dauki shahararren cakulan madara a matsayin misali:

MATAKI 1: Gabaɗaya, ana amfani da hanyar dumama ruwa don narke cakulan.Kamar yadda aka nuna a cikin hoton da ke ƙasa, yana zafi zuwa 40 ° C a cikin ruwa.A wannan lokacin, yana buƙatar motsawa akai-akai, kuma a kula kada ku bari tururin ruwa ya shiga cikin cakulan.

Mataki na 2: Akwai hanyoyi da yawa don kwantar da hankali, kamar sanyaya ruwa, tablage, shuka, da dai sauransu.

Waɗannan hanyoyin su ne don kwantar da cakulan da sauri don guje wa samuwar lu'ulu'u na VI tare da ƙananan barbashi da ƙarancin ɗanɗano.

Ɗauki hanyar da aka fi amfani da ita kuma mafi kyawun hanyar kwantar da tebur na marmara a matsayin misali.Zuba kashi biyu bisa uku na cakulan daidaitaccen narkewa akan teburin marmara.

Yi amfani da spatula don sake gogewa da yanke har sai cakulan ya yi kauri kuma ya fara manne wa spatula kuma ba zai iya gangara ƙasa ba.Hoton da ke ƙasa misali ne.

3A wannan lokacin, zafin jiki yana kusan 25 ° C, kuma lu'ulu'u masu kyau sun samo asali.Wajibi ne a goge duk cakulan da ke kan teburin komawa cikin tukunyar asali nan da nan, kuma zafin jiki bai kamata ya ci gaba da raguwa ba don samar da lu'ulu'u na nau'in β' ko ma nau'in lu'ulu'u na α.

Idan zafin jiki ya yi ƙasa sosai, dole ne a sake daidaita zafin jiki daga mataki na farko.

Mataki na 3: Maimaitawa.Cire duk cakulan da ke kan tebur a koma cikin tukunyar asali kuma a haɗa shi da cakulan mara sanyi.Yanayin zafin jiki a wannan lokacin yana kusan 30 ° C.Idan cakulan ya yi yawa sosai a ƙasa da 30 ° C don mataki na gaba, ana iya zafi kadan zuwa 30 ° C a cikin ruwa.

Wannan mataki dole ne a yi hankali, idan zafin jiki ya yi yawa, lu'ulu'u na mai za su sake narke, kuma dole ne a sake daidaita yanayin zafi daga mataki na farko.

Na gaba, cakulan da aka yi zafi za a iya amfani da shi don ci gaba da yin allura, tsomawa, da kuma tsara ayyukan.

Amma har yanzu yana buƙatar kulawa, yana da kyau a yi amfani da kayan adana zafi don sarrafa zafin jiki, da zarar zafin jiki ya yi sanyi sosai, dole ne a sake saita cakulan.

Saboda haka, cakulan abu ne mai laushi sosai.Yana da matukar damuwa ga zafin jiki da zafi.Idan akwai rashin kulawa a tsarin daidaita yanayin zafi, dole ne a sake farawa gaba daya, wanda ke da matukar damuwa.

 


Lokacin aikawa: Yuli-23-2021