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