1
|
Khadka DB, Pahadi T, Aryal S, Karki DB. Partial purification and characterization of protease extracted from kinema. Heliyon 2024; 10:e27173. [PMID: 38463843 PMCID: PMC10923713 DOI: 10.1016/j.heliyon.2024.e27173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 02/20/2024] [Accepted: 02/26/2024] [Indexed: 03/12/2024] Open
Abstract
Proteases are large group of highly demanded enzymes having huge application in food and pharmaceutical industries. Numerous sources, including plants, microorganisms, and animals, can be used to obtain protease. Due to its affordability and safety consideration, fermented foods have recently attracted more attention as a source of microbial protease. The present study aimed to extract protease from kinema, partially purify the extracted protease following dialysis after precipitation with ammonium sulfate, and determine general characteristics of protease. The kinema having highest proteolysis activity after three days of control fermentation (Temperature 30±2 °C, RH 66 ± 2%) was taken for the study. About 2.45 fold of purification with overall recovery of 63.21% was achieved after precipitation with ammonium sulfate at 30-70% saturation level followed by dialysis of crude extracted protease. The dialysed kinema protease had specific activity of 7.90 U/mg. The enzyme remained actively functional across a wider pH (5-9) and temperature (40-60 °C) range. SDS-PAGE and Zymogram confirmed the presence of three major active bands respectively of 29.04 kDa, 36.09 kDa and 46.35 kDa in the kinema protease extract. The enzyme kinetics data on casein, fitted to Mechaelis Mentens' plots showed the protease had Vmax of 1.001 U/ml with corresponding Km value of 0.825 mg/ml. Metal ions such as iron, mercury and aluminium showed the inhibition effect whereas presence of sodium, zinc, and calcium shows the activation effect on protease performance. The enzyme was active over various natural substrates; showing maximal activity on casein, and subsequent to bovine serum albumin, gelatin, hemoglobin and whey protein respectively. Furthermore, molecular weight distribution of the protease extract and activity inhibition with ethylenediaminetetraacetic acid and phenylmethylsulfonyl fluoride, suggesting the protease from kinema could be a metal dependent serine protease or mixture of them.
Collapse
Affiliation(s)
- Dambar Bahadur Khadka
- Central Department of Food Technology, Tribhuvan University, Dharan, Nepal
- Central Campus of Technology, Tribhuvan University, Dharan, Nepal
| | - Tikaram Pahadi
- Central Campus of Technology, Tribhuvan University, Dharan, Nepal
| | - Sunil Aryal
- Central Department of Food Technology, Tribhuvan University, Dharan, Nepal
| | - Dhan Bahadur Karki
- Central Department of Food Technology, Tribhuvan University, Dharan, Nepal
| |
Collapse
|
2
|
Zhang Y, Wang J, He J, Liu X, Sun J, Song X, Wu Y. Characteristics and application in cheese making of newly isolated milk-clotting enzyme from Bacillus megaterium LY114. Food Res Int 2023; 172:113202. [PMID: 37689949 DOI: 10.1016/j.foodres.2023.113202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/22/2023] [Accepted: 06/27/2023] [Indexed: 09/11/2023]
Abstract
Milk-clotting enzyme (MCE) is a crucial active agent in cheese making. It is necessary to find traditional MCE substitutes due to the limited production of traditional MCE (e.g., calf rennet) and increased cheese consumption. Bacillus megaterium strain LY114 with good milk-clotting activity (MCA) (448 SU/mL) and a high MCA/proteolytic activity (PA) ratio (6.0) was isolated and identified from agricultural soil in Laiyang (Shandong, China) through 16S rRNA sequencing of 45 strains. The Bacillus megaterium LY114 MCE had a remarkable specific activity (7532 SU/mg) and displayed a 4.83-fold purification yield with 34.17% recovery through ammonium sulfate fractionation and DEAE-Sepharose Fast Flow. The purified LY114 MCE was a metalloprotease with a molecular weight of 30 kDa. LY114 MCE was stable at pH 5.0-7.0 and temperature <40 °C. The highest MCA appeared at a substrate pH of 5.5 with 30 mM CaCl2. The Michaelis constant (Km) and maximal velocity (Vm) for casein were 0.31 g/L and 14.16 μmol/min, respectively. LY114 MCE preferred to hydrolyze α-casein (α-CN) rather than β-casein (β-CN) and had unique α-CN, β-CN and κ-casein (κ-CN) cleavage sites. LY114 MCE hydrolyzed casein to generate significantly different peptides compared with calf rennet and fungal MCE as determined by SDS-PAGE analysis. Chemical index analysis and sensory evaluation confirmed the usefulness of LY114 MCE in cheese making. LY114 MCE had the potential to be used in dairy processing and enriched traditional MCE substitutes.
Collapse
Affiliation(s)
- Yao Zhang
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, Zhejiang, China
| | - Jiaxin Wang
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, Zhejiang, China
| | - Jiamin He
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, Zhejiang, China
| | - Xiaofeng Liu
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China
| | - Juan Sun
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, Zhejiang, China
| | - Xinjie Song
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, Zhejiang, China
| | - Yuanfeng Wu
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, Zhejiang, China.
| |
Collapse
|
3
|
Mandim F, Santos-Buelga C, C F R Ferreira I, Petropoulos SA, Barros L. The wide spectrum of industrial applications for cultivated cardoon (Cynara cardunculus L. var. Altilis DC.): A review. Food Chem 2023; 423:136275. [PMID: 37172504 DOI: 10.1016/j.foodchem.2023.136275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 03/28/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023]
Abstract
Cynara cardunculus L. var. altilis DC. belongs to the Asteraceae family and is widely used. This species is integrated into the Mediterranean diet and has broad applicability due to its rich chemical composition. Its flowers, used as a vegetable coagulant for gourmet cheese production, are rich in aspartic proteases. Leaves are rich in sesquiterpene lactones, the most abundant being cynaropicrin, while stems present a higher abundance of hydroxycinnamic acids. Both classes of compounds exhibit a wide range of bioactive properties. Its chemical composition makes it applicable in other industrial sectors, such as energy (e.g., manufacturing of biodiesel and biofuel) or paper pulp production, among other biotechnological applications. In the last decade, cardoon has been identified as a competitive energy crop, constituting an opportunity for the economic recovery and development of the rural areas of the Mediterranean basin. This article reviews the chemical composition, bioactive properties, and multifaceted industrial applications of cardoon.
Collapse
Affiliation(s)
- Filipa Mandim
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança. Campus de Santa Apolónia, 5300-253 Bragança, Portugal; Grupo de Investigación em Polifenoles (GIP-USAL), Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain
| | - Celestino Santos-Buelga
- Grupo de Investigación em Polifenoles (GIP-USAL), Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain
| | - Isabel C F R Ferreira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança. Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Spyridon A Petropoulos
- University of Thessaly, Department of Agriculture, Crop Production and Rural Environment, 38446 N. Ionia, Volos, Greece
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança. Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
| |
Collapse
|
4
|
Zhang Y, Hu J, Liu X, Jiang C, Sun J, Song X, Wu Y. Isolation and production optimization of a novel milk-clotting enzyme Bacillus velezensis DB219. AMB Express 2022; 12:149. [DOI: 10.1186/s13568-022-01493-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 11/17/2022] [Indexed: 11/28/2022] Open
Abstract
AbstractThe milk-clotting enzyme (MCE) is a crucial ingredient in cheese manufacture. Due to the limits of traditional MCE, finding viable substitute is a pressing issue. This study aims to isolate and identify a wild strain with high milk-clotting activity (MCA) and low proteolytic activity (PA) and optimize the fermentation conditions for MCE production. A strain of Bacillus velezensis DB219 with high MCA/PA value (9.2) was isolated from dairy soil (Wuchang, Heilongjiang, China) and identified through 16S rRNA from 40 strains. The optimal wheat bran, carbon, nitrogen, inoculum size, volume and initial pH were 60 g/L, soluble starch 12.5 g/L, corn steep liquor 3 g/L, 5%, 40 mL and 6.15, respectively for improving DB219 MCE production through single factor experiment. The wheat bran concentration, corn steep liquor concentration and volume were the most critical factor and their changed range was determined through Plackett–Burman design and the steepest ascent/descent experiments. The response surface analysis experiment of three factors and three levels was conducted by Box–Behnken design. The theoretical optimal fermentation conditions for DB219 MCE were as follows: wheat bran concentration 60.14 g/L, soluble starch 12.5 g/L, corn steep liquor 3 g/L, inoculum size 5%, volume 40.08 mL and initial pH 6.15. DB219 MCE achieved the maximal MCA (3164.84 SU/mL) that was 101.9% of the predicted value (3104.49 SU/mL) and 4.3-fold higher than the control.
Collapse
|
5
|
Bouazizi A, Felfoul I, Attia H, Karoui R. Monitoring of dromedary milk clotting process by Urtica dioica extract using fluorescence, near infrared and rheology measurements. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
6
|
Ghribi AM, Gafsi IM, Blecker C, Attia H, Bouaziz MA, Besbes S. Cynara cardunculus
as a potential source of milk coagulating protease: Effects on physical properties of cow's milk. Food Sci Nutr 2022; 10:3855-3864. [PMID: 36348785 PMCID: PMC9632194 DOI: 10.1002/fsn3.2981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 11/17/2022] Open
Abstract
In the present research study, Cynara cardunculus (wild cardoon) flowers were blended and extracted using different types of buffers (phosphate buffer; citrate buffer and distilled water) for different maceration times. The most reliable, quick and efficient buffer was found to be phosphate (pH = 6.5) with a 6‐h maceration time, which was used throughout this study. C. cardunculus extract (CE) was found to have high clotting and proteolytic activities. The extracted enzyme was found to be very stable against a wide range of pH values as well as of temperature. The formation of milk gels prepared in the presence of CE with different types of milk was evaluated using dynamic rheology and Turbiscan. The evolution of both elastic (G′) and viscous (G″) moduli was monitored with time. The values of the whole milk enriched with milk powder gels were higher. Coagulum stability was evaluated using Turbiscan. The textural properties and the curd‐firming rate of coagulum were also determined. In conclusion, the prepared CE could be an efficient milk‐clotting agent in the production of dairy products.
Collapse
Affiliation(s)
- Abir Mokni Ghribi
- Ecole Nationale d'Ingénieurs de Sfax, Laboratoire Analyse Université de Sfax Sfax Tunisie
| | - Ines Makhlouf Gafsi
- Ecole Nationale d'Ingénieurs de Sfax, Laboratoire Analyse Université de Sfax Sfax Tunisie
| | - Christophe Blecker
- Gembloux Agro Bio‐Tech, Unité de Technologie des Industries Agro‐Alimentaires, passage des Déportés 2 Université de Liège Gembloux Belgium
| | - Hamadi Attia
- Ecole Nationale d'Ingénieurs de Sfax, Laboratoire Analyse Université de Sfax Sfax Tunisie
| | - Mohamed Ali Bouaziz
- Ecole Nationale d'Ingénieurs de Sfax, Laboratoire Analyse Université de Sfax Sfax Tunisie
| | - Souhail Besbes
- Ecole Nationale d'Ingénieurs de Sfax, Laboratoire Analyse Université de Sfax Sfax Tunisie
- Gembloux Agro Bio‐Tech, Unité de Technologie des Industries Agro‐Alimentaires, passage des Déportés 2 Université de Liège Gembloux Belgium
| |
Collapse
|
7
|
Characterization of nettle leaves (Urtica dioica) as a novel source of protease for clotting dromedary milk by non-destructive methods. Colloids Surf B Biointerfaces 2022; 211:112312. [PMID: 34979497 DOI: 10.1016/j.colsurfb.2021.112312] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/30/2021] [Accepted: 12/27/2021] [Indexed: 01/27/2023]
Abstract
This study investigates the valorization of the nettle leaves (Urtica dioica) as a novel source of a protease for clotting dromedary milk. The aim of this work is to study the effect of extracting pH on the enzymatic activity of nettle leaves extracts. The extraction was achieved in phosphate citrate buffer at different pH values (from 3 to 6.5) and the obtained extracts were used to coagulate dromedary milk. The characterization of the obtained extracts was carried out using non-destructive methods namely FT-MIR, fluorescence spectroscopy and turbiscan instrument. The extract prepared at pH = 4 had the highest proteolytic activity. The fluorescence and turbiscan measurements revealed a substantial effect of the pH value on chlorophyll residues extraction and stability, respectively. At an acidic environment (pH range of 3 - 4), the enzymatic extracts were unstable (with turbiscan stability index (TSI) values ~ 20), while at a nearly neutral pH value (pH range of 5 - 6.5), they were found to be more stable as indicated by the low TSI values ~ 1. The maximum milk-clotting activity (MCA) (0.021 U/mL) was obtained for the extracts prepared at pH = 4.
Collapse
|
8
|
Alavi F, Momen S. Aspartic proteases from thistle flowers: Traditional coagulants used in the modern cheese industry. Int Dairy J 2020. [DOI: 10.1016/j.idairyj.2020.104709] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
9
|
A New Insight on Cardoon : Exploring New Uses besides Cheese Making with a View to Zero Waste. Foods 2020; 9:foods9050564. [PMID: 32370268 PMCID: PMC7278730 DOI: 10.3390/foods9050564] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/21/2020] [Accepted: 04/22/2020] [Indexed: 11/16/2022] Open
Abstract
Cardoon, Cynara cardunculus L., is a perennial plant whose flowers are used as vegetal rennet in cheese making. Cardoon is native from the Mediterranean area and is commonly used in the preparation of salads and soup dishes. Nowadays, cardoon is also being exploited for the production of energy, generating large amount of wastes, mainly leaves. These wastes are rich in bioactive compounds with important health benefits. The aim of this review is to highlight the main properties of cardoon leaves according to the current research and to explore its potential uses in different sectors, namely the food industry. Cardoon leaves are recognized to have potential health benefits. In fact, some studies indicated that cardoon leaves could have diuretic, hepato-protective, choleretic, hypocholesterolemic, anti-carcinogenic, and antibacterial properties. Most of these properties are due to excellent polyphenol profiles, with interesting antioxidant and antimicrobial activities. These findings indicate that cardoon leaves can have new potential uses in different sectors, such as cosmetics and the food industry; in particular, they can be used for the preparation of extracts to incorporate into active food packaging. In the future, these new uses of cardoon leaves will allow for zero waste of this crop.
Collapse
|
10
|
Fermentation conditions of serine/alkaline milk-clotting enzyme production by newly isolated Bacillus licheniformis BL312. ANN MICROBIOL 2019. [DOI: 10.1007/s13213-019-01513-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
|
11
|
Ben Amira A, Blecker C, Richel A, Arias AA, Fickers P, Francis F, Besbes S, Attia H. Influence of the ripening stage and the lyophilization of wild cardoon flowers on their chemical composition, enzymatic activities of extracts and technological properties of cheese curds. Food Chem 2018; 245:919-925. [PMID: 29287460 DOI: 10.1016/j.foodchem.2017.11.082] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 11/19/2017] [Accepted: 11/21/2017] [Indexed: 11/25/2022]
|
12
|
Technological properties of milk gels produced by chymosin and wild cardoon rennet optimized by response surface methodology. Food Chem 2017; 237:150-158. [PMID: 28763981 DOI: 10.1016/j.foodchem.2017.05.105] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 05/15/2017] [Accepted: 05/18/2017] [Indexed: 11/23/2022]
Abstract
The aim of this paper was to optimize extraction conditions of C. cardunculus rennet by response surface methodology, in order to maximize its milk-clotting activity (MCA). The second objective was to examine the effect of different amounts of the optimized extract and the type of milk, on technological characteristics of the obtained gels. Results of the central composite design showed that the optimum extraction conditions, corresponding to maximum MCA (9.550CAU/mL), were selected as follows: Grinding time 30s, pH 3, extraction time 50min and solid to liquid ratio 15g/100mL. According to technological properties, it can be concluded that C. cardunculus extract exhibited an excellent efficiency on raw milk, in term of dynamic moduli and gel firmness, as compared to chymosin. A good gelation time and WHC were also obtained. Consequently, the optimized C. cardunculus rennet has the potential to be employed as an efficient milk-clotting agent.
Collapse
|
13
|
Ben Amira A, Besbes S, Attia H, Blecker C. Milk-clotting properties of plant rennets and their enzymatic, rheological, and sensory role in cheese making: A review. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2017. [DOI: 10.1080/10942912.2017.1289959] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Amal Ben Amira
- Gembloux Agro-Bio Tech, Unit of Food Science and Formulation, University of Liège, Gembloux, Belgium
- National Engineering School of Sfax, Laboratory of Food Analysis, University of Sfax, Sfax, Tunisia
| | - Souhail Besbes
- National Engineering School of Sfax, Laboratory of Food Analysis, University of Sfax, Sfax, Tunisia
| | - Hamadi Attia
- National Engineering School of Sfax, Laboratory of Food Analysis, University of Sfax, Sfax, Tunisia
| | - Christophe Blecker
- Gembloux Agro-Bio Tech, Unit of Food Science and Formulation, University of Liège, Gembloux, Belgium
| |
Collapse
|