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Sánchez-Mundo M, Bautista-Muñoz C, Jaramillo-Flores M. Characterization of protease activities in a crude extract of germinated cacao. CYTA - JOURNAL OF FOOD 2015. [DOI: 10.1080/19476337.2015.1023359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Trani A, Gambacorta G, Loizzo P, Alviti G, Schena A, Faccia M, Aquilanti L, Santarelli S, Di Luccia A. Biochemical traits of Ciauscolo, a spreadable typical Italian dry-cured sausage. J Food Sci 2011; 75:C514-24. [PMID: 20722905 DOI: 10.1111/j.1750-3841.2010.01703.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ciauscolo is a short-ripened fermented sausage manufactured in the Marche region (central Italy) that has recently received a protected geographical indication product classification (PGI). The aim of this study was the exploration of the biochemical traits of this traditional Italian salami, with a special focus on protein and lipid composition. Ciauscolo salami was characterized by pH of 5.1 and 0.91 water activity. A prevalence of lactic acid bacteria in the microbiota was found. The free amino acids and biogenic amines average content was 2657 and 255 mg/kg, respectively. With regards to lipids composition unsaturated fatty acids represented 63% and 72% of total and free fatty acids. Despite these results had wide statistical variability, attributable to differences in the processing parameters and raw matter used, some peculiar traits were found: (1) structural muscular proteins underwent to less proteolysis than sarcoplasmic ones; (2) glycogen phosphorylase, enolase, and aldolase were the most proteolyzed among the sacoplasmic proteins; (3) there was inverse correlation between histamine content and yeasts population, and a direct correlation between the gly-pro content and lactic acid bacteria counts; (4) the content of aspartic acid and methyonine seem to be a possible molecular marker able to distinguish between double and single milling.
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Affiliation(s)
- Antonio Trani
- Dipto. di Progettazione e Gestione del Sistemi Agro-zootecnici e forestali, Univ. di Bari, Bari, Italy
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Sánchez-Mundo M, Bautista-Muñoz C, Jaramillo-Flores M. Characterization of the exopeptidase activity existing in Theobroma cacao L. during germination. Process Biochem 2010. [DOI: 10.1016/j.procbio.2010.04.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Optimisation of hydrolysis conditions for the production of the angiotensin-I converting enzyme (ACE) inhibitory peptides from whey protein using response surface methodology. Food Chem 2009. [DOI: 10.1016/j.foodchem.2008.09.041] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Santos K, Medrano FJ. Expression, purification, and characterization of an aminopeptidase (Xac2987) with broad specificity from Xanthomonas axonopodis pv. citri. Protein Expr Purif 2006; 52:117-22. [PMID: 17110128 DOI: 10.1016/j.pep.2006.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2006] [Revised: 09/28/2006] [Accepted: 10/03/2006] [Indexed: 11/21/2022]
Abstract
We report here, the cloning, expression, and purification of a broad specificity aminopeptidase from Xanthomonas campestris pv. citri in fusion with a hexa-histidine tag at the N-terminal portion of the protein to facilitate purification. The protein was expressed in the soluble fraction and could be purified in one step by IMAC, yielding approximately 50mg pure protein per liter of cells. We show that the protein is folded and presents aminopeptidase activity against synthetic substrates. Also, we present the characterization of its specificity, showing that the protein was, indeed, able to catalyze the removal of N-terminal residues from synthetic substrates.
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Affiliation(s)
- Kelly Santos
- Centro de Biologia Molecular Estrutural, Laboratório Nacional de Luz Síncrotron, Caixa Postal 6192, CEP 13084-971 Campinas, Brazil
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Pérez-Guzmán AE, Victoria TCY, Cruz-Camarillo R, Hernández-Sánchez H. Purification and characterization of x-prolyl-dipeptidyl aminopeptidase from Lactococcus lactis subsp. cremoris NRRL 634. World J Microbiol Biotechnol 2006. [DOI: 10.1007/s11274-006-9140-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Gallo G, Angelis MD, McSweeney PL, Corbo MR, Gobbetti M. Partial purification and characterization of an X-prolyl dipeptidyl aminopeptidase from Lactobacillus sanfranciscensis CB1. Food Chem 2005. [DOI: 10.1016/j.foodchem.2004.08.047] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Purification and partial characterisation of X-prolyl dipeptidyl aminopeptidase of Lactobacillus helveticus ITG LH1. Int Dairy J 2003. [DOI: 10.1016/s0958-6946(03)00057-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Anastasiou R, Papadelli M, Georgalaki MD, Kalantzopoulos G, Tsakalidou E. Cloning and sequencing of the gene encoding X-prolyl-dipeptidyl aminopeptidase (PepX) from Streptococcus thermophilus strain ACA-DC 4. J Appl Microbiol 2002; 93:52-9. [PMID: 12067374 DOI: 10.1046/j.1365-2672.2002.01659.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIMS To clone and sequence the pepX gene from Streptococcus thermophilus. METHODS AND RESULTS Three pairs of primers were used in polymerase chain reactions using as template the total DNA from Strep. thermophilus ACA-DC 4 in order to amplify, clone and sequence the pepX gene. Sequence analysis revealed an open reading frame of 2268 nucleotides encoding a protein of 755 amino acids. The calculated molecular mass of 85 632 Da agreed well with the apparent molecular mass of 80 000 Da previously determined by sodium dodecyl sulphate-polyacrylamide gel electrophoresis and gel filtration for the monomeric form of the purified enzyme. CONCLUSIONS The pepX gene from Strep. thermophilus ACA-DC 4 was cloned and sequenced. The PepX protein showed significant sequence similarity with PepX enzymes from other lactic acid bacteria and contained a motif which was almost identical with the active site motif of the serine-dependent PepX family. SIGNIFICANCE AND IMPACT OF THE STUDY There are economic and technological incentives for accelerating and controlling the process of cheese ripening. To achieve this, starters may be modified by introducing appropriate genes from other food-grade bacteria. New or additional peptidase activities may alter or improve the proteolytic properties of lactic acid bacteria.
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Affiliation(s)
- R Anastasiou
- Laboratory of Dairy Research, Department of Food Science and Technology, Agricultural University of Athens, Greece
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11
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Xin M, Li Y, Jie L, Min D, Liu J. An X-prolyl dipeptidyl aminopeptidase from Lactococcus lactis: cloning, expression in Escherichia coli, and application for removal of N-terminal Pro-Pro from recombinant proteins. Protein Expr Purif 2002; 24:530-8. [PMID: 11922771 DOI: 10.1006/prep.2001.1579] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A novel pepX gene was cloned from isolated DNA of Lactococcus lactis by PCR. The deduced amino acid sequence of the 89-kDa protein showed 94, 93, 65, and 44% identity with the pepX protein from Lactococcus lactis subsp. cremoris, Lactococcus lactis subsp. lactis, Lactobacillus delbruecki subsp. bulgaricus, and Lactobacillus helveticus, respectively, and contained a serine protease G-K-S-Y-L-G consensus motif. The pepX gene has been cloned into pET17b and was expressed at a high level in Escherichia coli BL21 (DE3) LysS. PepX was purified to approximate homogeneity with ammonium sulfate precipitation and DEAE Sephadex A-50 chromatography. Optimal pepX activity was observed at pH 8.0 and 37 degrees C. According to SDS-PAGE analysis, pepX has a molecular mass of approximately 89 kDa. The peptidase can remove completely the unwanted X-Pro from the N-terminal of the target protein, releasing the naturally active protein and peptide, revealing a prospective application of pepX in large-scale production of pharmaceutical protein and peptide products.
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Affiliation(s)
- Ming Xin
- Biopharmaceutical College, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, People's Republic of China
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Goldstein JM, Banbula A, Kordula T, Mayo JA, Travis J. Novel extracellular x-prolyl dipeptidyl-peptidase (DPP) from Streptococcus gordonii FSS2: an emerging subfamily of viridans Streptococcal x-prolyl DPPs. Infect Immun 2001; 69:5494-501. [PMID: 11500422 PMCID: PMC98662 DOI: 10.1128/iai.69.9.5494-5501.2001] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Streptococcus gordonii is generally considered a benign inhabitant of the oral microflora, and yet it is a primary etiological agent in the development of subacute bacterial endocarditis (SBE), an inflammatory state that propagates thrombus formation and tissue damage on the surface of heart valves. Strain FSS2 produced several extracellular aminopeptidase and fibrinogen-degrading activities during growth in culture. In this report we describe the purification, characterization, and cloning of a serine class dipeptidyl-aminopeptidase, an x-prolyl dipeptidyl-peptidase (Sg-xPDPP, for S. gordonii x-prolyl dipeptidyl-peptidase), produced in a pH-controlled batch culture. Purification of this enzyme by anion exchange, gel filtration, and hydrophobic interaction chromatography yielded a protein monomer of approximately 85 kDa, as shown by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (PAGE) under denaturing conditions. However, under native conditions, the protein appeared to be a homodimer on the basis of gel filtration and PAGE. Kinetic studies indicated that purified enzyme had a unique and stringent x-prolyl specificity that is comparable to both the dipeptidyl-peptidase IV/CD26 and lactococcal x-prolyl dipeptidyl-peptidase families. Nested PCR cloning from an S. gordonii library enabled the isolation and sequence analysis of the full-length gene. A 759-amino-acid polypeptide with a theoretical molecular mass of 87,115 Da and a calculated pI of 5.6 was encoded by this open reading frame. Significant homology was found with the PepX gene family from Lactobacillus and Lactococcus spp. and putative x-prolyl dipeptidyl-peptidases from other streptococcal species. Sg-xPDPP may serve as a critical factor for the sustained bacterial growth in vivo and furthermore may aid in the proteolysis of host tissue that is commonly observed during SBE pathology.
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Affiliation(s)
- J M Goldstein
- Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia 30602-7229, USA
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Sanz Y, Toldrá F. Purification and characterization of an X-prolyl-dipeptidyl peptidase from Lactobacillus sakei. Appl Environ Microbiol 2001; 67:1815-20. [PMID: 11282638 PMCID: PMC92802 DOI: 10.1128/aem.67.4.1815-1820.2001] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
An X-prolyl-dipeptidyl peptidase has been purified from Lactobacillus sakei by ammonium sulfate fractionation and five chromatographic steps, which included hydrophobic interaction, anion-exchange chromatography, and gel filtration chromatography. This procedure resulted in a recovery yield of 7% and an increase in specificity of 737-fold. The enzyme appeared to be a dimer with a subunit molecular mass of approximately 88 kDa. Optimal activity was shown at pH 7.5 and 55 degrees C. The enzyme was inhibited by serine proteinase inhibitors and several divalent cations (Cu(2+), Hg(2+), and Zn(2+)). The enzyme almost exclusively hydrolyzed X-Pro from the N terminus of each peptide as well as fluorescent and colorimetric substrates; it also hydrolyzed X-Ala at the N terminus, albeit at lower rates. K(m) s for Gly-Pro- and Lys-Ala-7-amido-4-methylcoumarin were 29 and 88 microM, respectively; those for Gly-Pro- and Ala-Pro-p-nitroanilide were 192 and 50 microM, respectively. Among peptides, beta-casomorphin 1-3 was hydrolyzed at the highest rates, while the relative hydrolysis of the other tested peptides was only 1 to 12%. The potential role of the purified enzyme in the proteolytic pathway by catalyzing the hydrolysis of peptide bonds involving proline is discussed.
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Affiliation(s)
- Y Sanz
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), 46100 Burjasot (Valencia), Spain.
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Tsakalidou E, Anastasiou R, Papadimitriou K, Manolopoulou E, Kalantzopoulos G. Purification and characterisation of an intracellular X-prolyl-dipeptidyl aminopeptidase from Streptococcus thermophilus ACA-DC 4. J Biotechnol 1997; 59:203-11. [PMID: 9519481 DOI: 10.1016/s0168-1656(97)00157-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
An intracellular X-prolyl-dipeptidyl aminopeptidase from Streptococcus thermophilus ACA-DC 4, isolated from traditional Greek yoghurt, was purified by anion exchange and gel filtration chromatography. A single band of molecular weight of about 80,000 appeared in SDS-PAGE; by gel filtration it was shown that the native enzyme was dimeric. The peptidase showed optimum activity on glycyl-prolyl 4-nitroanilide at pH 7.0 and at 50 degrees C, with K(m) = 3.1 mM and Vmax = 3500 U mg-1; over 50 degrees C the enzyme activity declined rapidly. It was inactivated by PMSF; sulfhydryl group reagents and metal chelators had little effect on enzyme activity.
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Affiliation(s)
- E Tsakalidou
- Laboratory of Dairy Research, Agricultural University of Athens, Greece.
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Lee K, Lo C, Warthesen J. Removal of Bitterness from the Bitter Peptides Extracted from Cheddar Cheese with Peptidases from Lactococcus lactis ssp. cremoris SK11. J Dairy Sci 1996. [DOI: 10.3168/jds.s0022-0302(96)76512-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Abstract
Aminopeptidases are exopeptidases that selectively release N-terminal amino acid residues from polypeptides and proteins. Bacteria display several aminopeptidasic activities which may be localised in the cytoplasm, on membranes, associated with the cell envelope or secreted into the extracellular media. Studies on the bacterial aminopeptide system have been carried out over the past three decades and are significant in fundamental and biotechnological domains. At present, about one hundred bacterial aminopeptidases have been purified and biochemically studied. About forty genes encoding aminopeptidases have also been cloned and characterised. Recently, the three-dimensional structure of two aminopeptidases, the methionine aminopeptidase from Escherichia coli and the leucine aminopeptidase from Aeromonas proteolytica, have been elucidated by crystallographic studies. Most of the quoted studies demonstrate that bacterial aminopeptidases generally show Michaelis-Menten kinetics and can be placed into either of two categories based on their substrate specificity: broad or narrow. These enzymes can also be classified by another criterium based on their catalytic mechanism: metallo-, cysteine- and serine-aminopeptidases, the former type being predominant in bacteria. Aminopeptidases play a role in several important physiological processes. It is noteworthy that some of them take part in the catabolism of exogenously supplied peptides and are necessary for the final steps of protein turnover. In addition, they are involved in some specific functions, such as the cleavage of N-terminal methionine from newly synthesised peptide chains (methionine aminopeptidases), the stabilisation of multicopy ColE1 based plasmids (aminopeptidase A) and the pyroglutamyl aminopeptidase (Pcp) present in many bacteria and responsible for the cleavage of the N-terminal pyroglutamate.
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Affiliation(s)
- T Gonzales
- Laboratoire de Génétique Moléculaire des Microorganismes et des Interactions Cellulaires, C.N.R.S. UMR 5577, Bâtiment, Villeurbanne, France
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Fox PF, O'Connor TP, McSweeney PL, Guinee TP, O'Brien NM. Cheese: physical, biochemical, and nutritional aspects. ADVANCES IN FOOD AND NUTRITION RESEARCH 1996; 39:163-328. [PMID: 8794552 DOI: 10.1016/s1043-4526(08)60075-3] [Citation(s) in RCA: 116] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- P F Fox
- Department of Food Chemistry, University College, Cork, Ireland
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Abstract
A total of 169 Lactobacillus strains from 12 species (Lb. acidophilus, Lb. brevis, Lb. buchneri, Lb. casei, Lb. delbrueckii subsp. bulgaricus, Lb. delbrueckii subsp. delbrueckii, Lb. delbrueckii subsp. lactis, Lb. fermentum, Lb. helveticus, Lb. paracasei subsp. paracasei, Lb. plantarum and Lb. rhamnosus), isolated from raw milk and various milk products, and 9 Lactococcus lactis strains were evaluated for peptidase activities with five chromogenic substrates and a tryptic digest of casein. Within each species, the peptidase activity of the cell-free extracts of the strains varied. Furthermore, differences were observed between the Lactobacillus species and Lc. lactis. Lb. helveticus had by far the highest hydrolysing activities towards all substrates, indicating the presence of powerful aminopeptidases, X-prolyl-dipeptidyl aminopeptidases and proline iminopeptidases. Lb. delbrueckii subsp. bulgaricus possessed high hydrolysing activities towards substrates containing proline, alanyl-prolyl-p-nitroanilide and prolyl-p-nitroanilide. On the other hand, Lb. fermentum and Lb. brevis could be considered as weakly proteolytic species. A more detailed study with highly proteolytic Lactobacillus strains indicated that at least three different proteinases or endopeptidases were present. Compared with Lc. lactis, the Lactobacillus strains had a much lower hydrolytic action on glutamyl-glutamic acid, suggesting that glutamyl aminopeptidase was absent in lactobacilli.
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Affiliation(s)
- M Sasaki
- Snow Brand European Research Laboratories BV, AN Groningen, The Netherlands
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Bockelmann W. The proteolytic system of starter and non-starter bacteria: Components and their importance for cheese ripening. Int Dairy J 1995. [DOI: 10.1016/0958-6946(95)00041-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Fox PF, Singh TK, McSweeney PL. Biogenesis of flavour compounds in cheese. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1995; 367:59-98. [PMID: 7572380 DOI: 10.1007/978-1-4615-1913-3_6] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- P F Fox
- Department of Food Chemistry, University College, Cork, Ireland
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Abstract
This paper describes the specific activities for proline iminopeptidases, x-prolyl dipeptidyl peptidase and post proline endopeptidase, from each of two subspecies of Lactobacillus casei grown in MRS broth and whey media at 37 degrees C, pH 6.0. The histochemical PAGE of soluble extracts from one subspecies (Lactobacillus casei ssp. casei LLG) indicated that the two enzyme activities were due to distinct proteins. Except for a slight increase in x-prolyl dipeptidyl peptidase activity, the activities of proline imino- and endopeptidases of cells grown in whey medium did not vary markedly from those of cells grown in MRS broth. The effect of inhibitor agents and pH on the activities of proline iminopeptidase and x-prolyl dipeptidyl peptidase were investigated. The temperature optima and storage stability under different conditions were also studied for these activities.
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Affiliation(s)
- M B Habibi-Najafi
- Department of Food Science and Agricultural Chemistry, McGill University, Ste Anne de Bellevue, PQ, Canada
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Wohlrab Y, Bockelmann W. Purification and characterization of a new aminopeptidase from Lactobacillus delbrueckii subsp. bulgaricus B14. Int Dairy J 1994. [DOI: 10.1016/0958-6946(94)90056-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Pritchard GG, Coolbear T. The physiology and biochemistry of the proteolytic system in lactic acid bacteria. FEMS Microbiol Rev 1993; 12:179-206. [PMID: 8398214 DOI: 10.1111/j.1574-6976.1993.tb00018.x] [Citation(s) in RCA: 210] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The inability of lactic acid bacteria to synthesize many of the amino acids required for protein synthesis necessitates the active functioning of a proteolytic system in those environments where protein constitutes the main nitrogen source. Biochemical and genetic analysis of the pathway by which exogenous proteins supply essential amino acids for growth has been one of the most actively investigated aspects of the metabolism of lactic acid bacteria especially in those species which are of importance in the dairy industry, such as the lactococci. Much information has now been accumulated on individual components of the proteolytic pathway in lactococci, namely, the cell envelope proteinase(s), a range of peptidases and the amino acid and peptide transport systems of the cell membrane. Possible models of the proteolytic system in lactococci can be proposed but there are still many unresolved questions concerning the operation of the pathway in vivo. This review will examine current knowledge and outstanding problems regarding the proteolytic system in lactococci and also the extent to which the lactococcal system provides a model for understanding proteolysis in other groups of lactic acid bacteria.
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Affiliation(s)
- G G Pritchard
- Department of Chemistry and Biochemistry, Massey University, Palmerston North, New Zealand
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Tsakalidou E, Dalezios I, Georgalaki M, Kalantzopoulos G. A Comparative Study: Aminopeptidase Activities from Lactobacillus delbrueckii ssp. bulgaricus and Streptococcus thermophilus. J Dairy Sci 1993. [DOI: 10.3168/jds.s0022-0302(93)77549-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Affiliation(s)
- P S Tan
- Department of Microbiology, University of Groningen, Haren, The Netherlands
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Purification and characterization of a second aminopeptidase (pepC-like) from Lactobacillus delbrueckii subsp. bulgaricus B14. Int Dairy J 1993. [DOI: 10.1016/0958-6946(93)90083-c] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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Wohlrab Y, Bockelmann W. Purification and characterization of a dipeptidase from Lactobacillus delbrueckii subsp. bulgaricus. Int Dairy J 1992. [DOI: 10.1016/0958-6946(92)90026-i] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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