PENGARUH PENGGUNAAN Bifidobacterium longum DALAM BAKTERI STARTER TERHADAP KADAR ASAM LAKTAT, ASETALDEHID, DAN AKSEPTABILITAS FLAVORED YOGURT KOLOSTRUM.

PENGARUH PENGGUNAAN Bifidobacterium longum DALAM
BAKTERI STARTER TERHADAP KADAR ASAM LAKTAT,
ASETALDEHID, DAN AKSEPTABILITAS
FLAVORED YOGURT KOLOSTRUM

HITO MUSLIM NURPRATAMA

ABSTRAK

Penelitian bertujuan untuk mengetahui pengaruh penggunaan
Bifidobacterium longum dalam bakteri starter pada pembuatan flavored
yogurt kolostrum dengan kadar asam laktat, asetaldehid dan akseptabilitas
yang dikehendaki. Penelitian ini menggunakan Rancangan Acak Lengkap
dengan lima jenis perlakuan penggunaan B. longum dengan Lactobacillus
bulgaricus dan Streptococcus thermophillus, sebagai bakteri starter yaitu
1:4 (P1 tanpa penambahan B. longum), 1:4:1 (P2), 1:4:2 (P3), 1:4:3 (P4),
1:4:4 (P5), dengan empat ulangan. Hasil penelitian menunjukkan bahwa
penggunaan Bifidobacterium longum dalam bakteri starter berpengaruh
meningkatkan kadar asam laktat, asetaldehid dan akseptabilitas flavored
yogurt kolostrum. Penggunaan bakteri starter L. bulgaricus, S.thermophillus
dengan B. longum pada perlakuan 1:4:4 menghasilkan flavored yogurt

kolostrum yang dikehendaki, dengan kadar asam laktat 0,84%, asetaldehid
19,64 ppm dan akseptabilitas dengan total penerimaan yang paling disukai.
Kata kunci: Flavored Yogurt Kolostrum, Kadar Asam Laktat, Asetaldehid,
Akseptabilitas.

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EFFECT OF USING Bifidobacterium longum IN STARTER
CULTURES ON THE LACTIC ACID CONTENT,
ACETALDEHYDE, AND ACCEPTABILITY OF FLAVORED
YOGURT COLOSTRUM

HITO MUSLIM NURPRATAMA

ABSTRACT

The objectives of this study was to determine the effect of B. longum
in starter cultures for flavored yoghurt colostrum processing due to the
lactic acid content, acetaldehyde, and its acceptability. Completely
Randomized Design was used in this study. There were five treatments of

using B. longum in starter cultures consisted of Lactobacillus bulgaricus
and Streptococcus thermophillus, at ratio of 1:4 (P1 or without B. longum),
1:4:1 (P2), 1:4:2 (P3), 1:4:3 (P4), and 1:4:4 (P5). The result indicated that the
lactic acid content, acetaldehyde, and acceptability of flavored yoghurt
colostrum were increasing by using B. longum in starter cultures. By using
B. longum in starter cultures at ratio of 1:4:4 produced flavored yoghurt
colostrums as desired, with a lactic acid content of 0,84%, acetaldehyde of
19,64 ppm, and the acceptability was ranging from like very much to like
extremely.
Keywords: Flavored Yoghurt Colostrum,
Acetaldehyde, Acceptability.

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Lactic

Acid

Content,