1. Patel AK, Singh VK, Jagannadham MV (2007) Carnein, a serine protease from noxious plant weed Ipomoea carnea (Morning Glory). J Agric Food Chem 55: 5809-18.
  2. Guiama VD, Beka RG, Ngah E, Libouga DG, Vercaigne-Marko D, et al. (2014) Milk-Coagulating Extract Produced from S. aethiopicum Shum Fruits: Multivariate Techniques of Preparation, Thermal Stability and Effect on Milk Solids Recovery in Curd. Int J Food Engin 10: 211–22.
  3. Beka RG, Krier F, Botquin M, Guiama VD, Donn P, et al. (2014) Characterisation of a milk-clotting extract from Balanites aegyptiaca fruit pulp. Int Dairy J 34: 25-31.
  4. Hafid K, John J, Sayah TM, Domínguez R, Becila S, et al. (2019) One step recovery of latex papain from Carica papaya using three phase partitioning and its use as milk-clotting and meat-tenderizing agent. International Journal of Biological Macromolecules 146: 798-810.
  5. Zikiou A, Esteves AC, Esteves E, Rosa N, Gomes S, et al. (2020) Algerian cardoon flowers express a large spectrum of coagulant enzymes with potential applications in cheesemaking. Int Dairy J 105: 104689
  6. Tito FR, Pepe A, Tonon CV, Daleo GR, Guevara MG (2020) Determination and characterisation of milk-clotting activity of two Solanum tuberosum aspartic proteases (StAPs). International Dairy Journal 104:104-645.
  7. Gomes S, Belo AT, Alvarenga N, Dias J, Lage P, et al. (2019) Characterization of Cynara cardunculus L. flower from Alentejo as a coagulant agent for cheesemaking. Int Dairy J 91: 178-84.
  8. Llorente BE, Obregon WD, Aviles FX, Caffini NO, Vairo-Cavalli S (2014) Use of artichoke (Cynara scolymus) flower extract as a substitute for bovine rennet in the manufacture of Gouda-type cheese: Characterization of aspartic proteases. Food Chem 159: 55-63.
  9. Shah MA, Mir SA, Paray MA (2014) Plant proteases as milk-clotting enzymes in cheesemaking: A review. Dairy Science & Technology 94: 5-16.
  10. Tomar R, Kumar R, Jagannadham MV (2008) A staple serine protease, Wrightin, from the latex of the plant Wrightia tinctoria (Roxb) R. Br.: purification and biochemical properties. J Agric Food Chem 56: 1479-87.
  11. Antao CM, Malcata FX (2005) Plant serine proteases: biochemical, physiological and molecular features. Plant Physiol Biochem 43: 637-50.
  12. Asif-Ullah M, Kim KS, Yu YG (2006) Purification and characterization of a serine protease from Cucumis trigonus Roxburghi. Phytochem 67: 870-5.
  13. Yamagata H, Ueno S, Iwasaki T (1989) Isolation and characterization of a possible native cucumisin from developing melon fruits and its limited autolysis to cucumisin. Agric Biol Chem 53: 1009-17.
  14. Kaneda M, Tominaga N (1977) Isolation and characterization of a proteinase from white gourd. Phytochem 16: 345-6.
  15. Uchikoba T, Horita H, Kaneda M (1990) Proteases of the sarcocarp of yellow snake-gourd. Phytochem 29: 1879-81.
  16. Kaneda M, Sobue A, Eida S, Tominaga N (1986) Isolation and characterization of a proteinase from the sarcocarp of snake-gourd fruit. J Biochem 99: 569–77.
  17. Mohamed Ahmed IA, Morishima I, Babiker EE, Mori N (2009) Dubiumin, a chymotrypsin-like serine protease from the seeds of Solanum dubium Fresen. Phytochem 70: 483-91.
  18. Beka RG, Guiama VD, Ngah E, Slomianny M-C, Vercaigne-Marko D (2010) Glycocarbohydrates detected in milk-clotting proteases from Balanites aegyptiaca fruits using labeled lectins and gas chromatography. Biochem Ind J 7: 30-7.
  19. Chapagain BP, Wiesman Z (2007) Determination of saponins in the kernel cake of Balanites aegyptiaca by HPLC-ESI/MS. Phytochem Anal 18: 354-62.
  20. Llorente BE, Brutti CB, Caffini NO (2004) Purification and characterization of a milk-clotting aspartic proteinase from globe artichoke (Cynara scolymus L.). J Agric Food Chem 52: 8182-9.
  21. Arima K, Ya J, Iwasaki S (1970) Milk-clotting enzyme from Mucor pusillus var. Lindt. In: Pearlman EG, Lorand L editors. Methods in enzymology. New York: Academic Press: 446-59.
  22. Sarath G, Motte RS, Wanger FM (1989) Protease assay methods. In: Beynon RJ, Bond JS editors. Proteolytic enzyme-A practical approach. Oxford: IRL Press: 25-55.
  23. Bradford M (1976) A rapid and sensitive method for the quantification of microgram quantities of protein utilizing the principle of protein dye binding. Anal Biochem 72: 248-54.
  24. Laemmli UK (1970) Cleavage of structural proteins during assembly of the head of bacteriophage T4. Nature 277: 680-5.
  25. McSweeney PLH, Olson NF, Fox PF, Healy A, Hojrup P (1993) Proteolytic specificity of chymosin on bovine αs1-casein. J Dairy Res 60: 401-12.
  26. Sidrach L, Garcia-Canovas F, Tudela J, Rodriguez-Lopez JN (2005) Purification of cynarases from artichoke (Cynara scolymus L.): enzymatic properties of cynarase A. Phytochem 66: 41-9.
  27. Raposo S, Domingos A (2008) Purification and characterization milk-clotting aspartic proteinases from Centaurea calcitrapa cell suspension cultures. Process Biochem 43: 139-44.
  28. Brown RJ, Ernstrom CA (1999) Milk-Clotting Enzymes and Cheese Chemistry Part I- Milk-Clotting Enzymes. In: Fundamentals of Dairy Chemistry, 3rd edition. Gaithersburg, Maryland: Aspen Publishers, Inc; 609-34.
  29. Hedstrom L (2002) Serine protease mechanism and specificity. Chem Rev 102: 4501-23.
  30. Fontanini D, Jones BL (2002) SEP-1 a subtilisin-like serine endopeptidase from germinated seeds of Hordeum vulgare L. cv, Morex. Planta 215: 885-93.
  31. Uchikoba T, Yonezawa H, Kaneda M (1995) Cleavage specificity of cucumisin, a plant serine protease. J Biochem 117: 1126-30.
  32. Sharma A, Kumari M, Jagannadham MV (2009) Benghalensin, a highly stable serine protease from the latex of medicinal plant Ficus benghalensis. J Agric Food Chem 57: 11120-6.
  33. Pande M, Dubey VK, Yadav SC, Jagannadham MV (2006) A novel serine protease cryptolepain from Cryptolepis buchanani: purification and biochemical characterization. J Agric Food Chem 54: 10141-50.