High total blood cholesterol levels are one of the factors that cause atherosclerosis and coronary heart disease. Fruitghurt is a probiotic product made from fruit juice. The content of potential ingredients in red guava and the role of LAB bacteria make fruitghurt a good and useful potential food. This study aims to determine the effect of red guava juice fruitghurt on total blood cholesterol in experimental animals induced by a high-fat diet. This research is a pure laboratory experiment. In this study, 5 different treatments were carried out on 5 groups of experimental animals. The data obtained were tested with several levels of statistical tests, to see the significance of the results. From the results obtained, it was concluded that the one that had a significant effect on reducing total blood cholesterol levels in rats was treatment group 3 given simvastatin and fruitghurt drugs with cholesterol levels reaching 49.54 mg/dl. The decrease in total blood cholesterol levels may be due to the mechanism of action of simvastatin and fruitghurt drugs. The mechanism of action of the drug simvastatin is to competitively inhibit 3-hydroxy-3-methylglutaroyl-coenzyme A causing a decrease in cholesterol synthesis, causing a decrease in total cholesterol. Giving fruitghurt can reduce total cholesterol levels caused by the mechanism of action of probiotics which can increase the secretion of bile salt hydrolase enzymes and produce dehydrogenated cholesterol cofactors so that total cholesterol will decrease. The results of this study indicate that guava juice fruitghurt can reduce blood cholesterol levels in experimental animals.
Fruitghurt jambu biji merah merupakan produk fermentasi jambu biji merah menggunakan bakteri asam laktat (BAL), yaitu Lactobacillus acidophilus yang merupakan bakteri probiotik handal yang sangat bermanfaat bagi tubuh. Pada penelitian sebelumnya didapatkan bahwa penambahan tapioka 0,5% dan sukrosa 10% menunjukkan pertumbuhan Lactobacillus acidophilus yang paling baik. Tujuan penelitian ini adalah untuk mengetahui fruitghurt jambu biji merah yang paling disukai oleh panelis ditinjau dari warna, aroma, rasa, dan tekstur serta uji karakteristik fisikokimia biji jambu biji merah yang difermentasi oleh Lactobacillus acidophilus dengan penambahan sukrosa dan tapioka sebagai emulsifier. Metode penelitian dengan menggunakan uji organoleptik dengan kuesioner pada 30 panelis tidak terlatih yang merupakan pegawai Fakultas Kedokteran Universitas Jenderal Achmad Yani yang memenuhi kriteria inklusi dan eksklusi. Sedangkan uji karakteristik fisikokimia dilakukan dengan metode eksperimental di labolatorium yang meliputi uji fisik, yaitu pH, kadar air dan uji kimia, yaitu kadar protein, kadar lemak, dan kadar asam. Objek penelitian ini adalah fruitghurt sari jambu biji merah yang difermentasi oleh bakteri Lactobacillus acidophilus ATCC 4356 dengan penambahan tapioka 0,5%. Hasil uji organoleptik menunjukkan bahwa panelis lebih menyukai buah jambu biji merah hasil fermentasi Lactobacillus acidophilus dengan penambahan tapioka 0,5% ditinjau dari warna, aroma, rasa dan tekstur. Hasil uji fisikokimia fruitghurt dengan penambahan tapioka 0,5% yang meliputi pH, kadar air, kadar protein, kadar lemak, dan kadar asam semuanya memenuhi persyaratan SNI yoghurt.
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