Table 6.

Representative acid proteases originated from microbial sources.

Microbial sources	Proteases	References
Aspergillus oryzae	An aspartate protease	Vishwanatha et al. (2009)
	An acid protease as starter culture in doubanjiang fermentation	Niu et al. (2023)
	A valuable food acid protease	Murthy and Kusumoto (2015)
	An acid protease	de Castro and Sato (2014)
	An aspartate protease	Shu et al. (2020)
	A salt-tolerant acid protease	Lee et al. (2010)
Aspergillus niger	Acid proteinase A	Takahashi et al. (1998)
	Extracellular acid proteases	Aalbæk et al. (2002)
	Acid proteinases	Yang and Lin (1998)
	Aspartic proteases	Purushothaman et al. (2019)
	Acid proteinases	Li et al. (2020)
Aspergillus foetidus	An aspartic protease	Souza et al. (2017)
	A thermostable extracellular acid protease	Souza et al. (2015)
Aspergillus saitoi	An acid carboxypeptidase	Chiba et al. (1993)
Aspergillus clavatus	An extracellular acid protease	Sampaio Silva et al. (2011)
Rhizomucor miehei	Acid proteinases	Aljammas et al. (2022a,b)
	Rennet	Celebi et al. (2016)
	Rennet	Soltani et al. (2019)
Mucor miehei	Acid proteases	Ayhan et al. (2001)
	Acid proteases	Escobar and Barnett (1995)
	Rennet	Seker et al. (1999)
Rhizopus rhizopodiformis	Extracellular acid proteases	Schindler et al. (1983), Sun et al. (2014)