PENGARUH VARIASI KONSENTRASI DAN LAMA PERENDAMAN ASAM LAKTA TERHADAP KANDUNGAN GLUKOSA DAN KUALITAS TEPUNG GANYONG (Canna Edualis Kerr ) SEBAGAI PETUNJUK PRAKTIKUM BIOKIMIA
Abstract: This study aims to
investigate the influence of concentration and soaking time of lactic acid
toward glucose and quality of canna’s
starch (Canna Edualis Kerr). The research method using a completely randomized
design (CRD) with 3x3x3 factorial and three replications. The repetition are
K1L1, K1L2, K1L3, K2L1, K2L2, K2L3, K3L1, K3L2, first K3L3. The first factors
is variations of concentration (K) include 1%, 1.5%, 2%, the second factor is
soaking time (L), there are 60 minutes, 90 minutes, 120minutes. Collecting data
by calculating the glucose level using titration method with Na. Organoleptic tests
include color, odor, texture and level of preference to the 15 panelists using
a closed uestionnaire. Best organoleptic test are K3L3 treatment (2% of lactic
acid concentration with 120 minutes soakingtime) with a total value of 82.5
while the lowest are K3L1 treatment (2% of concentration with a 60minutes of
soaking time) with 48.5 of values. Data analysis shows the variation of
concentration affect on glucose levels (P = 0.000 <0.05). Soaking time
affect on glucose levels (P = 0.000 <0.05) .There are any interaction effect
of concentration and soaking time on glucose levels. Based on the results
showed thatthe highest glucose levels found in K1LI treatment with 1% of lactic
acid concentration and 60 minutes ofsoaking time. As for the glucose
concentration was lowest for K3L3 treatment with 3% of lactic acidconcentration
and 120 minutes of soaking time. The results of this study are used as material
preparation Biochemistry lab manual.
Penulis: Erika Ayu Desanti, R.
Bekti Kiswardianta, Nasrul Rofiah Hidayati
Kode Jurnal: jpbiologidd160694
