Open access Jurnal
Spectroscopic Analysis of Tempeh Protein Content during the Production Process
International Journal of Transdisciplinary Knowledge · Vol. 2 No. 1 (2021) · pp. 51–62
- ISSN
- 2797-4251
- Published
- 2021-07-31
- Publisher
- Institut Agama Islam Negeri Kendari
Abstract
Tempeh is a local Indonesian food that is liked by the community, both locally and internationally. The high protein content is the reason for choosing tempeh as a complementary food. In its production, tempeh is made by two important processes, including treatment and fermentation. During this process, the protein can be damaged, resulting in a decrease in the protein content of tempeh. Based on these problems, this study aims to analyze the reduction of tempeh protein content during the production process. The analysis used two spectroscopic methods, including FTIR and UV-Visible. FTIR spectroscopy was used to observe the reduction in total protein content, while UV-Vis spectroscopy was used to observe the reduction in dissolved protein content. The results of the study for FTIR analysis showed that at the pretreatment and fermentation stages, both caused a decrease in the total protein content of tempeh. This was observed with a decrease in the intensity of IR absorption at a wavenumber of 1745 cm-1 which is identical to the C=O group and 1543 cm-1 which is identical to the N-H group. Based on the results of the UV-Visible study, it shows that the fermentation time affects the amount of dissolved protein. This situation is supported by the increasing pH of tempeh and decreasing water content during fermentation.
Collaboration network of the authors
27 authors · 65 co-authorship links · 9 across different organisations
Hover or tap a name to highlight its co-authors. Double-click to open the author's page.
- Institut Agama Islam Negeri Kendari
- Politeknik STTT Bandung
- Universitas Muhammadiyah Kendari
- Affiliation unknown
- Different organisations
- Same organisation
- Affiliation unknown
- Thicker line = more joint articles · bigger circle = more articles
Show as table
| Co-author | Organisation | Joint articles |
|---|---|---|
| Kurniawan Kurniawan | Politeknik STTT Bandung | 3 |
| Jumarddin La Fua | Institut Agama Islam Negeri Kendari | 2 |
| Muhammad Alifuddin | Institut Agama Islam Negeri Kendari | 1 |
| Yusuf Yusuf | Universitas Muhammadiyah Kendari | 1 |
| Ahmadi Ahmadi | Institut Agama Islam Negeri Kendari | 1 |
| Islamiyah Islamiyah | Affiliation unknown | 1 |
| Faizah Binti Awad | Institut Agama Islam Negeri Kendari | 1 |
| Sitti Nurhalimah | Institut Agama Islam Negeri Kendari | 1 |
| Nurdin Nurdin | Institut Agama Islam Negeri Kendari | 1 |
| Herlina Herlina | Institut Agama Islam Negeri Kendari | 1 |
| Hadi Machmud | Institut Agama Islam Negeri Kendari | 1 |
| Erdiyanti Erdiyanti | Institut Agama Islam Negeri Kendari | 1 |
| Anis Suwarni | Institut Agama Islam Negeri Kendari | 1 |
| La Hewi | Institut Agama Islam Negeri Kendari | 1 |
| Usman Usman | Institut Agama Islam Negeri Kendari | 1 |
| Samrin Samrin | Institut Agama Islam Negeri Kendari | 1 |
| Marlina Gazali | Institut Agama Islam Negeri Kendari | 1 |
| Yuvita Ayuningtyas | Institut Agama Islam Negeri Kendari | 1 |
| Nur Aini | Institut Agama Islam Negeri Kendari | 1 |
| Zairul Zairul | Institut Agama Islam Negeri Kendari | 1 |
| Arwilda Arwilda | Institut Agama Islam Negeri Kendari | 1 |
| Rini Muliasari | Institut Agama Islam Negeri Kendari | 1 |
| Juwita Juwita | Institut Agama Islam Negeri Kendari | 1 |
Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.