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Hassan M, Hussain D, Kanwal T, Xiao HM, Ghulam Musharraf S. Methods for detection and quantification of gelatin from different sources. Food Chem 2024; 438:137970. [PMID: 37988934 DOI: 10.1016/j.foodchem.2023.137970] [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: 05/23/2023] [Revised: 11/05/2023] [Accepted: 11/09/2023] [Indexed: 11/23/2023]
Abstract
Gelatin is a water-soluble protein obtained from the collagen of various animal origins (porcine, bovine, fish, donkey, horse, and deer hide) and has diverse applications in the food, pharmaceutical, and cosmetics industries. Porcine and bovine gelatins are extensively used in food and non-food products; however, their acceptance is limited due to religious prohibitions, whereas fish gelatin is accepted in all religions. In Southeast Asia, especially in China, gelatin obtained from donkey and deer skins is used in medicines. However, both sources suffer from adulteration (mixing different sources of gelatin) due to their limited availability and high cost. Unclear labeling and limited information about actual gelatin sources in gelatin-containing products cause serious concern among societies for halal and fraud authentication of gelatin sources. Therefore, authenticating gelatin sources in gelatin-based products is challenging due to close similarities between the composition differences and degradation of DNA and protein biomarkers in processed gelatin. Thus, different methods have been proposed to identify and quantify different gelatin sources in pharmaceutical and food products. To the best of our knowledge, this systematic and comprehensive review highlights different authentication techniques and their limitations in gelatin detection and quantification in various commercial products. This review also describes halal authentication and adulteration prevention strategies of various gelatin sources, mainly focussing on research gaps, challenges, and future directions in this research area.
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Affiliation(s)
- Mahjabeen Hassan
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Dilshad Hussain
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
| | - Tehreem Kanwal
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Hua-Ming Xiao
- Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Syed Ghulam Musharraf
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
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Garcia-Vaquero M, Mirzapour-Kouhdasht A. A review on proteomic and genomic biomarkers for gelatin source authentication: Challenges and future outlook. Heliyon 2023; 9:e16621. [PMID: 37303544 PMCID: PMC10248112 DOI: 10.1016/j.heliyon.2023.e16621] [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: 08/13/2022] [Revised: 05/05/2023] [Accepted: 05/22/2023] [Indexed: 06/13/2023] Open
Abstract
Biomarkers are compounds that could be detected and used as indicators of normal and/or abnormal functioning of different biological systems, including animal tissues and food matrices. Gelatin products of animal origin, mainly bovine and porcine, are currently under scrutiny mainly due to the specific needs of some sectors of the population related to religious beliefs and their dietary prohibitions, as well as some potential health threats associated with these products. Thus, manufacturers are currently in need of a reliable, convenient, and easy procedure to discern and authenticate the origin of animal-based gelatins (bovine, porcine, chicken, or fish). This work aims to review current advances in the creation of reliable gelatin biomarkers for food authentication purposes based on proteomic and DNA biomarkers that could be applied in the food sector. Overall, the presence of specific proteins and peptides in gelatin can be chemically analysed (i.e., by chromatography, mass spectroscopy, electrophoresis, lateral flow devices, and enzyme-linked immunosorbent assay), and different polymerase chain reaction (PCR) methods have been applied for the detection of nucleic acid substances in gelatin. Altogether, despite the fact that numerous methods are currently being developed for the purpose of detecting gelatin biomarkers, their widespread application is highly dependent on the cost of the equipment and reagents as well as the ease of use of the various methods. Combining different methods and approaches targeting multiple biomarkers may be key for manufacturers to achieve reliable authentication of gelatin's origin.
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Mahamad P, Dahlan W, Kahong S, So-audon S, Munaowaroh W, Nopponpunth V. Duplex droplet digital PCR (ddPCR) for simultaneous quantification of bovine and porcine gelatin in capsules. Food Sci Biotechnol 2023; 32:803-811. [PMID: 37041814 PMCID: PMC10082860 DOI: 10.1007/s10068-022-01204-x] [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: 05/19/2022] [Revised: 10/14/2022] [Accepted: 11/01/2022] [Indexed: 12/23/2022] Open
Abstract
Detection of bovine and porcine in gelatin-based products is important as species fraud and product mislabeling may have a detrimental impact on customers who have health, ethical, and religious concerns about animal products. The duplex droplet digital PCR (ddPCR) assay using double-quenched probes has been developed for quantification and detection of porcine and bovine DNA in gelatin capsules. A DNA mixture derived from gelatin was found to have a limit of detection as low as 0.001 ng/µl for porcine samples and 0.01 ng/µl for bovine samples. DNA from 12 other distinct species was tested with the bovine and porcine probes, showing high specificity for this method. The test was validated using fifty-five commercial supplement and pharmaceutical capsules, of which 17 were positive for bovine and/or porcine DNA. This study shows that the duplex ddPCR is reliable for routine analysis in the identification of bovine and porcine origins for gelatin capsules. Supplementary Information The online version contains supplementary material available at 10.1007/s10068-022-01204-x.
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Affiliation(s)
- Pornpimol Mahamad
- The Halal Science Center, Chulalongkorn University, CU Research Building, 254 Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330 Thailand
| | - Winai Dahlan
- The Halal Science Center, Chulalongkorn University, CU Research Building, 254 Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330 Thailand
| | - Saveeyah Kahong
- The Halal Science Center, Chulalongkorn University, CU Research Building, 254 Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330 Thailand
| | - Sukanya So-audon
- The Halal Science Center, Chulalongkorn University, CU Research Building, 254 Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330 Thailand
| | - Wila Munaowaroh
- The Halal Science Center, Chulalongkorn University, CU Research Building, 254 Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330 Thailand
| | - Vanida Nopponpunth
- The Halal Science Center, Chulalongkorn University, CU Research Building, 254 Phayathai Road, Wangmai, Pathumwan, Bangkok, 10330 Thailand
- Department of Clinical Chemistry, Faculty of Allied Health Science, Chulalongkorn University, 154 Rama I Road, Chula Soi 12, Pathumwan, Bangkok, 10330 Thailand
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Forooghi E, Vali Zade S, Sahebi H, Abdollahi H, Sadeghi N, Jannat B. Authentication and Discrimination of Tissue Origin of Bovine Gelatin using Combined Supervised Pattern Recognition Strategies. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Mitochondrial genes as strong molecular markers for species identification. THE NUCLEUS 2022. [DOI: 10.1007/s13237-022-00393-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Tasrip NA, Mohd Desa MN, Khairil Mokhtar NF, Sajali N, Mohd Hashim A, Ali ME, Kqueen CY. Rapid porcine detection in gelatin-based highly processed products using loop mediated isothermal amplification. Journal of Food Science and Technology 2021; 58:4504-4513. [PMID: 34629514 DOI: 10.1007/s13197-020-04932-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 11/23/2020] [Accepted: 12/01/2020] [Indexed: 01/14/2023]
Abstract
Low DNA concentration recovered from highly processed products such as gelatin and gelatin-based products renders difficulty in detecting porcine contamination using conventional PCR techniques. We documented here a porcine-specific loop-mediated isothermal amplification (LAMP) to identify porcine traces in gelatin products. The porcine-specific primers were designed according to mitochondrial DNA of Cytochrome b gene sequence. Here we used two different reaction mixtures for LAMP assay (GENIE and MYRM) against the same DNA samples extracted from gelatin products and porcine-specific primers to detect the presence of porcine DNA. The porcine-specific primers were shown to be specific only to Sus scrofa against 14 DNA of other meat species. The analytical sensitivity of the LAMP assay for porcine DNA detection is 1 pg/µL using both GENIE (within 30 m) and MYRM (within 60 m) reaction mixtures. Analysis against 32 samples of gelatin products showed that five samples were found to contain porcine DNA; two samples out of six gelatin powder samples and three gelatin capsule samples out of nine. Out of these five positive samples, three were not labeled containing porcine gelatin. Overall, LAMP assay in this study showed an excellent specificity, sensitivity and rapidity in detection of porcine DNA in gelatin products. Supplementary Information The online version contains supplementary material available at (10.1007/s13197-020-04932-2).
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Affiliation(s)
- Nor Asmara Tasrip
- Halal Products Research Institute, Universiti Putra Malaysia, 43400 Serdang, Selangor Malaysia
| | - Mohd Nasir Mohd Desa
- Halal Products Research Institute, Universiti Putra Malaysia, 43400 Serdang, Selangor Malaysia.,Ministry of Higher Education, Konsortium Institut Halal IPT Malaysia, 62200 Putrajaya, Malaysia.,Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor Malaysia
| | - Nur Fadhilah Khairil Mokhtar
- Halal Products Research Institute, Universiti Putra Malaysia, 43400 Serdang, Selangor Malaysia.,Ministry of Higher Education, Konsortium Institut Halal IPT Malaysia, 62200 Putrajaya, Malaysia
| | - Nurhayatie Sajali
- Halal Products Research Institute, Universiti Putra Malaysia, 43400 Serdang, Selangor Malaysia.,School of Engineering and Technology, University College of Technology Sarawak, 96000 Sibu, Sarawak Malaysia
| | - Amalia Mohd Hashim
- Ministry of Higher Education, Konsortium Institut Halal IPT Malaysia, 62200 Putrajaya, Malaysia.,Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor Malaysia
| | - Md Eaqub Ali
- Modesto City Schools, 426 Locust St., Modesto, CA 95351-2699 USA.,Nanotechnology and Catalysis Research Center, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Cheah Yoke Kqueen
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor Malaysia
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Yayla MEA, Ekinci Doğan C. Development of a new and sensitive method for the detection of pork adulteration in gelatin and other highly processed food products. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:881-891. [PMID: 33818304 DOI: 10.1080/19440049.2021.1902574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Porcine adulteration has become a major concern amongst communities including Muslims and Jews. Reliable detection of the presence of porcine DNA in gelatin and highly processed food samples is essential for Halal and kosher food control. In this study, a forensic approach involving DNA isolation and real-time polymerase chain reaction (PCR) was performed to detect the presence of porcine DNA in commercial gelatin and processed foods containing porcine by-products. The method was compared with commercially sensitive porcine DNA detection kits (Biotecon and R-Biopharm) which are commonly used in food control laboratories for Halal and kosher authentication. The results indicated that a newly developed method called TübiGel was at least 10 times more sensitive for porcine DNA detection. The TübiGel method was found to have a detection limit of 0.01% porcine gelatin, whilst the Biotecon method had 0.1% and R-Biopharm method detected >5% porcine gelatin. The forensic DNA isolation approach of the TübiGel method was found to be a critical step. In addition, real-time PCR of TübiGel method was also found to detect porcine DNA better than real-time PCR of commercial kits.
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Review on analytical methods for analysis of porcine gelatine in food and pharmaceutical products for halal authentication. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.05.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Fusion of gelonin and anti-insulin-like growth factor-1 receptor (IGF-1R) affibody for enhanced brain cancer therapy. Arch Pharm Res 2017; 40:1094-1104. [PMID: 28900896 DOI: 10.1007/s12272-017-0953-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 09/06/2017] [Indexed: 10/18/2022]
Abstract
Owing to the extraordinary potency in inhibiting protein translation that could eventually lead to apoptosis of tumor cells, ribosome-inactivating proteins (RIPs) such as gelonin have been considered attractive drug candidates for cancer therapy. However, due to several critical obstacles (e.g., severe toxicity issues caused by a lack of selectivity in their mode of action and the low cytotoxicity via poor cellular uptake, etc.), clinical application of RIPs is yet far from being accomplished. To overcome these challenges, in the present study, we engineered gelonin fusion proteins with anti-insulin-like growth factor-1 receptor (IGF-1R) affibody ("IAFF") via the genetic recombinant method and the SpyCatcher/SpyTag-mediated conjugation method. To this end, recombinant gelonin-anti-IGF-1R affibody (rGel-IAFF), gelonin-SpyCatcher (Gel-SpyCatcher) and SpyTag-IAFF fusion proteins were produced from the E. coli expression system, and gelonin-IAFF conjugate was synthesized by mixing Gel-SpyCatcher and SpyTag-IAFF. After preparation of both rGel-IAFF and Gel-IAFF conjugate, their components' functionality was characterized in vitro. Our assay results confirmed that, while both Gel-IAFF and Gel-SpyCatcher retained equipotent N-glycosidase activity to that of gelonin, IAFF was able to selectively bind to IGF-1R overexpressed U87 MG brain cancer cells over low expression LNCaP cells. The results of cellular analyses showed that rGel-IAFF and Gel-IAFF conjugate both exhibited a greater cell uptake in the U87 MG cells than gelonin, but not in the LNCaP cells, yielding a significantly augmented cytotoxicity only in the U87 MG cells. Remarkably, rGel-IAFF and Gel-IAFF conjugate displayed 22- and 5.6-fold lower IC50 values (avg. IC50: 180 and 720 nM, respectively) than gelonin (avg. IC50: 4000 nM) in the U87 MG cells. Overall, the results of the present research demonstrated that fusion of gelonin with IAFF could provide an effective way to enhance the anti-tumor activity, while reducing the associated toxicity of gelonin.
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Nikzad J, Shahhosseini S, Tabarzad M, Nafissi-Varcheh N, Torshabi M. Simultaneous detection of bovine and porcine DNA in pharmaceutical gelatin capsules by duplex PCR assay for Halal authentication. ACTA ACUST UNITED AC 2017; 25:3. [PMID: 28196517 PMCID: PMC5310068 DOI: 10.1186/s40199-017-0171-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 02/09/2017] [Indexed: 01/09/2023]
Abstract
Background In the pharmaceutical industry, hard- and soft-shelled capsules are typically made from gelatin, commonly derived from bovine and porcine sources. To ensure that pharmaceutical products comply with halal regulations in Muslim countries (no porcine products allowed), development of a valid, reliable, quick, and most importantly, cost-effective tests are of utmost importance. Methods We developed a species-specific duplex polymerase chain reaction (PCR) assay targeting 149 bp porcine and 271 bp bovine mitochondrial DNA (mtDNA) to simultaneously detect both porcine and bovine DNA (in one reaction at the same time) in gelatin. Some additional simplex PCR tests (targeting 126 bp bovine and 212 bp porcine mtDNA) and real-time PCR using a commercially available kit (for identification of porcine DNA) were used to verify the selectivity and sensitivity of our duplex PCR. After optimization of DNA extraction and PCR methods, hard/soft pharmaceutical gelatin capsules (containing drug) were tested for the presence of porcine and/or bovine DNA. Results Duplex PCR detected the presence of as little as 0.1% porcine DNA, which was more accurate than the commercially available kit. Of all gelatin capsules tested (n = 24), 50% contained porcine DNA (pure porcine gelatin alone or in combination with bovine gelatin). Conclusions Duplex PCR presents an easy-to-follow, quick, low-cost and reliable method to simultaneously detect porcine and bovine DNAs (>100 bp) in minute amounts in highly processed gelatin-containing pharmaceutical products (with a 0.1% sensitivity for porcine DNA) which may be used for halal authentication. Graphical abstract Simultaneous detection of porcine and bovine DNA in gelatin capsules by duplex PCR ![]()
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Affiliation(s)
- Jafar Nikzad
- School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soraya Shahhosseini
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Tabarzad
- Protein Technology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nastaran Nafissi-Varcheh
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Torshabi
- Department of Dental Biomaterials, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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