Effect of Temperature and Drying Time on Angiotensin Converting Enzyme (ACE) Inhibitor and Antioxidant Activity of Soybean (Glycine max L.) – Jackbean (Canavalia ensiformis L.) Mixed Grains Tempeh Flour

Sari, Diah Ayu Puspa and Ningrum, Andriati and Anggrahini, Sri (2021) Effect of Temperature and Drying Time on Angiotensin Converting Enzyme (ACE) Inhibitor and Antioxidant Activity of Soybean (Glycine max L.) – Jackbean (Canavalia ensiformis L.) Mixed Grains Tempeh Flour. Indonesian Food and Nutrition Progress, 18 (1). pp. 1-8. ISSN 2597 - 9388

Text IFNP_ENZYME (ACE) INHIBITOR AND ANTIOXIDANT ACTIVITY OF SOYBEAN (Glycine)-Diah Ayu Puspasari.pdf Download (3MB)

Abstract

The increase of hypertension sufferers encourages the development of functional foods. The presence of tempeh mixed grains of soybean and jackbean contains bioactive peptides, as antihypertensive and antioxidant agents, encouraging the development of functional food such as tempeh flour of mixed grains. The research was aimed to investigate the effect of temperature and drying time on functional properties, amino acids profile, and isoflavone compounds. The different drying temperatures (50 °C and 70 oC) and times (6; 8; and 10 h) were applied on soybean and jackbean tempeh (1:1 w/w) for making the mixed grains tempeh flour. The angiotensin converting enzyme (ACE) inhibitor activity, antioxidant activity, total phenolic, amino acid profile, and isoflavone content of the flour were analyzed. The result showed that the best tempeh flour of mixed grains was obtained by drying at 70 °C for 8 h with ACE inhibitor activity of 86.04%, antioxidant activity of 55.34% and total phenolic of 3.98 mg/g DB. This flour contained amino acids related to ACE-Inhibitor peptide precursors (glutamic acid and leucine), antioxidant peptide precursors (phenylalanine and histidine) as well as isoflavone compounds (daidzein and genistein). This finding reveals that drying temperature and time affected the functional properties, amino acids profile and isoflavone compounds.

Item Type:	Article
Uncontrolled Keywords:	Angiotensin Converting Enzyme Inhibitor; Antioxidant; Isoflavone, Jackbean; mixed grains; Tempeh flour.
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Industri Halal > S1 Teknologi Hasil Pertanian
Depositing User:	Tri Yuliani
Date Deposited:	27 Mar 2023 07:29
Last Modified:	28 Mar 2023 04:20
URI:	http://repository.unu-jogja.ac.id/id/eprint/612

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