cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kab. sleman,
Daerah istimewa yogyakarta
INDONESIA
Indonesian Food and Nutrition Progress
Published by Universitas Gadjah Mada
ISSN : 08546177     EISSN : 25979388     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Indonesian Food and Nutrition Progress, is a primarily online, a peer-reviewed journal in food technology and nutrition. All papers should focus on the novelty of the research carried out. It is published by Indonesian Association of Food Technologists in collaboration with Faculty of Agricultural Technology, Gadjah Mada University. This journal is published two times a year which is a continuation of the last publication in 2005. The journal is devoted to a rapid peer reviewed full-length original research paper, short communications, and critical reviews, which serves as an international forum for the exchange of information in all aspects of food technology and nutrition. Food and Nutrition Progress includes a wide range of food technology and nutrition topics such as: Physical, chemical, biotechnological, microbiological, process engineering, analytical, and nutritional aspects; Post-harvest technology; Sensory evaluation; Diet plans; Gastronomy; Food safety and hygiene; Functional foods; Novel foods.
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol 5, No 1 (1998)" : 6 Documents clear
Production of Alkaline Lipase from Kluyvera KB4 Retno Indrati; V.S. Pertiwi Rumiyati; Tyas Utami
Indonesian Food and Nutrition Progress Vol 5, No 1 (1998)
Publisher : Indonesian Association of Food Technologists

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jifnp.59

Abstract

Kluyvera KB4 produced alkaline lipase in a medium containing oil as inducer. Optimum conditions for lipase production were determined in terms of composition of medium, pH, temperature and time of incubation. The highest lipase productivity was obtained from a medium with corn oil as carbon source and peptone as nitrogen source. Oils seem to be. an essential carbon source, since in a medium containing sorbitol without addition of oil the lipase production was very low, approximately only 14%. However, higher concentration of oil (2%) suppressed the lipase production. Production of lipase was greatly influenced by pH of the medium and incubation temperature. It was optimally active at pH 7.5 and 37 °C in medium containing peptone and corn oil 1 %, respectively. Under optimum condition (pH 7.5, at 37 °C), the highest lipase activity was obtained after 36 h of incubation.
Multiple Regression Based on Impact Parameters for Bruising Prediction in Apple Yuwana Yuwana
Indonesian Food and Nutrition Progress Vol 5, No 1 (1998)
Publisher : Indonesian Association of Food Technologists

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jifnp.58

Abstract

Impact parameters were explored to be used for bruising predictions in apple by employing multiple regression analysis. All impact parameters observed were potential to be involved in the predictions except mass of fruit and impact duration. The multiple regression analysis based on maximum acceleration, velocity change, initial velocity, absorbed energy, maximum deformation and residual deformation produced a coefficient correlation (R) of 0.95 and 0.04% error for the relation between predicted bruise diameter and measured bruise diameter, a coefficient correlation (R) of 0.94 and 0.09% error for the relation between predicted bruise depth and measured bruise depth, a coefficient correlation (R) of 0.95 and 3.64% error for the relation between predicted bruise volume and measured bruise volume. The multiple regression based only on the maximum acceleration and velocity change still produced reliable bruising predictions.
Effect of Coconut Water Extract on the Growth and Serum Biochemical Values of Rats Fed Fish Oil Diet Umar Santoso; Kazuhiro Kubo; Toru Ota; Tadahiro Tadakoro; Akio Maekawa
Indonesian Food and Nutrition Progress Vol 5, No 1 (1998)
Publisher : Indonesian Association of Food Technologists

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jifnp.55

Abstract

To justify the safety of ethanolic extract of coconut water (CWE), a study with rats was conducted. Wistar rats fedfish oil diet and rats fed the standard diei of AIN93G groupi were orally administrated 0.8 ml CWE/rat twice per day for 14 days. During experimental period, the behavior and growth of rats were monitored. At the end of experiment, the rats were anaesthetized and the internal organs were taken and measuredfor each weight. Blood was taken from the hearth and then analyzed for serum biochemical values and TBARS. The results, no adverse effects of CWE administration were observed as evaluated by growth pattern, food intake and feces appearance. Serum biochemical values and weight of internal organs of CWE receiving rats were comparable to those of untreated control. SeruniTBARS value of rats fedfish oil was significantly higher than that of those ed standard diet, however, oral administratibn of CWE did not significantly decreaie serum TBARS
Protoplast Fusion of Koji-Mold Aspergillus spp. to Improve Kecap Production Sebastian Margino; F. S. Rejeki; E. S. Rahayu; D. Wibowo
Indonesian Food and Nutrition Progress Vol 5, No 1 (1998)
Publisher : Indonesian Association of Food Technologists

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jifnp.60

Abstract

Protoplast fusion of Aspergillus oryzae and A. niger for improving the enzyme productivity of desirable kojimolds for kecap (Indonesian soy sauce) was studied. Protoplasting of both mycellium aspergilli was obtained by treating them using Novozyme 234, at final concen tration 5 mg/ml and the time of exposure for three and two hours. Regenerated protoplasts of A. oryzae oncomplete medium (RCMMPA) was 1.46-3.74 % and on minimal medium (RMMPA) was 0.93-4.93%, whereas A. niger was 0.44-7.64 % and 0.17-6.25 %, respectively. Protoplast fusion was conducted in 30 % PEG 6000 (Polyethylene Glycol) containing 0.01 M CaC12 and 0.05 % glycine, and at pH 7.5. For selecting the suspected fusant Dinikonasol 12.5%, at the final concentration 200 ppm and Cycloheximide at the final concentration 100 ppm Was used as a marker. Results showed that hundred eighteen of suspected fusants were obtained and after screening found that seven as selected fusants. Based on the enzyme activities, finally, fusant number 77 was selected as a fusant with high proteolytic and glutaminase activities.
Detection of Fish Freshness Using Immobilized ADP-ase and 5'-Nucleotidase on Polyacrylamide Gel Djagal W Marseno; Retno Indrati; Sudarmanto Sudarmanto
Indonesian Food and Nutrition Progress Vol 5, No 1 (1998)
Publisher : Indonesian Association of Food Technologists

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jifnp.54

Abstract

The presence of ADP and IMP in the muscle of fish could be used as an indicator of its freshness. These metabolites could be detected enzymaticaly using ADPase and 51-nucleotidase. The aim of this research was to determine the presence of ADP and IMP in the muscle of fish qualitatively, using immobilized ADPase and 5'-nucleotidase on polyacrylamide gel. The results showed that in the non-immobilized form, ADPase has an optimum pH of 6 and stable at pH 5.5-10, while 5'-nucleotidase has two optima pH of 6.5 and 9 and it was stable at pH 7-10. Optimum temperature of ADPase and 5'-nucleotidase was 45 and 50°C, respectively. In the immobilized form, the activity of ADPase was optimum at pH 6 and it was still stable at pH 5.5 - 7.0 after storage at -20°Cfor 90 days, while 5'-nucleotidase was still stable at pH Z5-10 after storage at -20°C for 90 days. Both enzymes were more stable in frozen storage than that of chilled storage. Sensitivity of both enzymes to detect the fish freshness during storage was affected by the presence of free inorganic phosphate derived from other phosphate-containing metabolites.
Kinetics and Substrate Partitioning in the Polyphenol Oxidase-Catalysed Oxidation of Catechol in a Two-Phase System Tyas Utami; D.L Pyle
Indonesian Food and Nutrition Progress Vol 5, No 1 (1998)
Publisher : Indonesian Association of Food Technologists

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (165.263 KB) | DOI: 10.22146/jifnp.56

Abstract

The kinetics of catechol oxidation catalysed by polyphenol oxidase in two-phase systems with mixtures of lauryl alcohol and hexane as the solvent phase is investigated, with particular reference to the effect of partitioning of catechol on the enzyme kinetics. Theory is developed to derive a relationship between the apparent K. and the intrinsic or 'true' Kn. The theory predicts that substrate partitioning should not change %Cue but that the relationship between the apparent and intrinsic K,, values should depend on the phase volume ratio and the partition coefficient. The theory shows good agreement with the results and gives a consistent K. value.

Page 1 of 1 | Total Record : 6

 1 

Filter by Year

1998 1998


Reset
Filter By Issues
All Issue Vol 22, No 2 (2025) Vol 22, No 1 (2025) Vol 21, No 2 (2024) Vol 21, No 1 (2024) Vol 20, No 2 (2023) Vol 20, No 1 (2023) Vol 19, No 2 (2022) Vol 19, No 1 (2022) Vol 18, No 2 (2021) Vol 18, No 1 (2021) Vol 17, No 2 (2020) Vol 17, No 1 (2020) Vol 16, No 2 (2019) Vol 16, No 1 (2019) Vol 15, No 2 (2018) Vol 15, No 1 (2018) Vol 14, No 2 (2017) Vol 14, No 1 (2017) Vol 13, No 1 (2014) Vol 12, No 1 (2005) Vol 11, No 2 (2004) Vol 11, No 1 (2004) Vol 10, No 2 (2003) Vol 10, No 1 (2003) Vol 9, No 1 (2002) Vol 6, No 2 (1999) Vol 6, No 1 (1999) Vol 5, No 2 (1998) Vol 5, No 1 (1998) Vol 3, No 2 (1996) Vol 1, No 2 (1994) Vol 1, No 1 (1994) More Issue