scholarly journals PENGARUH PENGGUNAAN VACUUM COOLING TERHADAP PERUBAHAN MUTU MADU HUTAN RIAU

2021 ◽  
Vol 10 (1) ◽  
pp. 49-57
Author(s):  
Amanda Izzah Aulia ◽  
Anang Lastriyanto ◽  
Yusuf Wibisono ◽  
Ary Mustofa Ahmad

Pasteurisasi akan merusak kualitas madu seperti kadar gula pereduksi dan sifat fisik madu karena panas sensible yang tertahan dalam madu. Oleh karena itu, dilakukan pengujian pengaruh pendinginan pada madu setelah proses pasteurisasi dengan alat vacuum cooling. Pada industri pengolah madu yang telah menggunakan vacuum cooling, saat melakukan proses vakum, terdapat masalah yaitu madu tersedot ke selang vakum saat proses vakum terjadi, maka peneliti menggunakan volume sebagai perlakuan kedua. Tujuan dari penelitian yang dilakukan adalah untuk mengetahui pengaruh pendinginan vakum terhadap perubahan mutu madu hutan Riau. Kandungan madu yang diuji adalah gula pereduksi, kadar air, viskositas dan total padatan terlarut. Pengujian gula pereduksi menggunakan metode DNS, sedangkan pengujian fisik kadar air menggunakan Moisture Balance MOC-120H Shimadzu, pengujian viskositas menggunakan Viscometer NDJ-1S dan pengujian total padatan terlarut menggunakan Refractometer Brix 0% - 32% ATC. Pendinginan madu dengan vacuum cooling menyebabkan penurunan kadar air hingga rata rata 5,1% yang mana akan meningkatkan viskositas hingga rata rata 14,33 Poise dan total padatan hingga 4 %Brix. Gula pereduksi madu dengan perlakuan vacuum cooling mendapatkan hasil terbaik yaitu 48,49%. Dari hasil penelitian yang didapatkan, mendinginkan madu dengan alat pendingin vakum pasca proses pasteursisasi didapatkan hasil bahwa lebih baik menggunakan alat pendingin vakum dibandingkan dengan pendinginan konvensional pada kualitas madu hutan Riau.

2018 ◽  
Vol 1 (1) ◽  
pp. 21-23
Author(s):  
Fahrianto Selamet ◽  
Andi Mayasari Usman ◽  
Rian Adi Pamungkas

Diabetic foot ulcer (DF) is a chronic complication of diabetes mellitus (DM), which impact on the morbidity, mortality and quality of patients’ lives.Of those patients with diabetes mellitus, approximately 15% to 25% developed to the foot ulcer. Beside has the infection and debridement of devitalized tissue downloading; the moisture imbalance becomes the factors of recalcitrant to healing. Moist wound healing is often contraindicated to the non-healable wounds. While wound care involves the debridement, bacterial reduction, and moisture balance in order to achieve the good granulation of the tissue development and adequate blood supply.


2008 ◽  
Vol 74 (10) ◽  
pp. 3138-3142 ◽  
Author(s):  
Haiping Li ◽  
Mehrdad Tajkarimi ◽  
Bennie I. Osburn

ABSTRACT Vacuum cooling is a common practice in the California leafy green industry. This study addressed the impact of vacuum cooling on the infiltration of Escherichia coli O157:H7 into lettuce as part of the risk assessment responding to the E. coli O157:H7 outbreaks associated with leafy green produce from California. Vacuum cooling significantly increased the infiltration of E. coli O157:H7 into the lettuce tissue (2.65E+06 CFU/g) compared to the nonvacuumed condition (1.98E+05 CFU/g). A stringent surface sterilization and quadruple washing could not eliminate the internalized bacteria from lettuce. It appeared that vacuuming forcibly changed the structure of lettuce tissue such as the stomata, suggesting a possible mechanism of E. coli O157:H7 internalization. Vacuuming also caused a lower reduction rate of E. coli O157:H7 in stored lettuce leaves than that for the nonvacuumed condition.


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