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Artikel: Development of a novel one‐step triplex PCR assay for the simultaneous detection of porcine circovirus type 2, porcine parvovirus and classical swine fever virus in a single tube

Rajkhowa, S. / Choudhury, M. / Pegu, S.R. / Sarma, D.K. / Gupta, V.K.

Letters in applied microbiology. 2022 Aug., v. 75, no. 2

2022

Abstract: Co‐infection of multiple pathogens complicates diagnosis, treatment and preventive measures based on clinical signs. Therefore, reliable diagnostic tool for timely reporting of suspected diseases is very much essential. A novel one‐step triplex PCR assay ...

Abstract	Co‐infection of multiple pathogens complicates diagnosis, treatment and preventive measures based on clinical signs. Therefore, reliable diagnostic tool for timely reporting of suspected diseases is very much essential. A novel one‐step triplex PCR assay was developed and evaluated for simultaneous detection of three important viruses namely porcine circovirus type 2 (PCV2), porcine parvovirus (PPV) and classical swine fever virus (CSFV) involved in reproductive problems in pigs. Each of the three pairs of oligonucleotide primers exclusively amplified the targeted fragment of the specific viruses. The multiplex PCR assay was found to be sensitive in detecting at least 300 pg of viral genomic DNA or RNA from a mixture of three viruses in a reaction. No amplification was obtained from other common viruses or pathogens, such as porcine reproductive and respiratory syndrome virus (PRRSV), Japanese encephalitis virus (JEV), porcine group A rotavirus (PoRVA), Escherichia coli and Staphylococcus aureus thereby indicating that the developed multiplex PCR has high specificity. Because of the sensitivity and specificity, the developed multiplex PCR assay will be a useful tool for clinical diagnosis of mixed infections of DNA and RNA viruses in pigs.
Schlagwörter	Classical swine fever virus ; DNA ; Escherichia coli ; Japanese encephalitis virus ; Porcine circovirus-2 ; RNA ; Rotavirus A ; Staphylococcus aureus ; diagnostic techniques ; mixed infection ; polymerase chain reaction ; porcine reproductive and respiratory syndrome ; swine ; viruses
Sprache	Englisch
Erscheinungsverlauf	2022-08
Umfang	p. 338-344.
Erscheinungsort	John Wiley & Sons, Ltd
Dokumenttyp	Artikel
Anmerkung	JOURNAL ARTICLE
ZDB-ID	632584-1
ISSN	1472-765X ; 0266-8254
ISSN (online)	1472-765X
ISSN	0266-8254
DOI	10.1111/lam.13732
Datenquelle	NAL Katalog (AGRICOLA)

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Artikel ; Online: Development of a novel one-step triplex PCR assay for the simultaneous detection of porcine circovirus type 2, porcine parvovirus and classical swine fever virus in a single tube.

Rajkhowa, S / Choudhury, M / Pegu, S R / Sarma, D K / Gupta, V K

Letters in applied microbiology

2022 Band 75, Heft 2, Seite(n) 338–344

Abstract: Co-infection of multiple pathogens complicates diagnosis, treatment and preventive measures based on clinical signs. Therefore, reliable diagnostic tool for timely reporting of suspected diseases is very much essential. A novel one-step triplex PCR assay ...

Abstract	Co-infection of multiple pathogens complicates diagnosis, treatment and preventive measures based on clinical signs. Therefore, reliable diagnostic tool for timely reporting of suspected diseases is very much essential. A novel one-step triplex PCR assay was developed and evaluated for simultaneous detection of three important viruses namely porcine circovirus type 2 (PCV2), porcine parvovirus (PPV) and classical swine fever virus (CSFV) involved in reproductive problems in pigs. Each of the three pairs of oligonucleotide primers exclusively amplified the targeted fragment of the specific viruses. The multiplex PCR assay was found to be sensitive in detecting at least 300 pg of viral genomic DNA or RNA from a mixture of three viruses in a reaction. No amplification was obtained from other common viruses or pathogens, such as porcine reproductive and respiratory syndrome virus (PRRSV), Japanese encephalitis virus (JEV), porcine group A rotavirus (PoRVA), Escherichia coli and Staphylococcus aureus thereby indicating that the developed multiplex PCR has high specificity. Because of the sensitivity and specificity, the developed multiplex PCR assay will be a useful tool for clinical diagnosis of mixed infections of DNA and RNA viruses in pigs.
Mesh-Begriff(e)	Animals ; Circovirus/genetics ; Classical Swine Fever Virus/genetics ; Coinfection/diagnosis ; Coinfection/veterinary ; Multiplex Polymerase Chain Reaction ; Parvovirus, Porcine/genetics ; Sensitivity and Specificity ; Swine ; Swine Diseases/diagnosis ; Viruses/genetics
Sprache	Englisch
Erscheinungsdatum	2022-05-10
Erscheinungsland	England
Dokumenttyp	Journal Article
ZDB-ID	632584-1
ISSN	1472-765X ; 0266-8254
ISSN (online)	1472-765X
ISSN	0266-8254
DOI	10.1111/lam.13732
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Development of a rapid loop-mediated isothermal amplification (LAMP) assay for visual detection of porcine parvovirus (PPV) and its application.

Rajkhowa, S / Choudhury, M / Pegu, S R / Sarma, D K / Hussain, I

Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology

2021 Band 52, Heft 4, Seite(n) 1725–1732

Abstract: Porcine parvovirus (PPV) infection is one of the most important causes of reproductive failure in pigs impacting the piggery industry globally with huge economic losses. A cost-effective, simple, rapid, specific, and sensitive method is critical for ... ...

Abstract	Porcine parvovirus (PPV) infection is one of the most important causes of reproductive failure in pigs impacting the piggery industry globally with huge economic losses. A cost-effective, simple, rapid, specific, and sensitive method is critical for monitoring PPV infection on pig farms. The main aim of the present study was to develop and evaluate a loop-mediated isothermal amplification (LAMP) assay for rapid visual detection of porcine parvovirus (PPV) in pigs. A set of six LAMP primers including two outer primers, two inner primers, and two loop primers were designed utilizing the conserved region of capsid protein VP2 gene sequences of PPV and was applied for detection of PPV from porcine samples. Time and temperature conditions for amplification of PPV genes were optimized to be 30 min at 63 °C. The developed assay was ten-fold more sensitive than conventional PCR with analytical sensitivity of 20 pg and 200 pg, respectively. This is the first report of detection of PPV by LAMP assay from India. The assay did not cross-react with porcine circovirus type 2 (PCV2), porcine reproductive and respiratory syndrome virus (PRRSV), or classical swine fever virus (CSFV). The LAMP assay was assembled into a LAMP assay kit of 20 reactions and was validated in different laboratories in India. The newly developed LAMP assay was proved to be a specific, sensitive, rapid, and simple method for visual detection of PPV which does not require even costly equipments for performing the test. It complements and extends previous methods for PPV detection and provides an alternative approach for detection of PPV.
Mesh-Begriff(e)	Animals ; Molecular Diagnostic Techniques ; Nucleic Acid Amplification Techniques ; Parvoviridae Infections/diagnosis ; Parvoviridae Infections/veterinary ; Parvovirus, Porcine/genetics ; Sensitivity and Specificity ; Swine ; Swine Diseases/diagnosis
Sprache	Englisch
Erscheinungsdatum	2021-07-09
Erscheinungsland	Brazil
Dokumenttyp	Journal Article
ZDB-ID	2017175-4
ISSN	1678-4405 ; 1517-8382
ISSN (online)	1678-4405
ISSN	1517-8382
DOI	10.1007/s42770-021-00569-1
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel: Effect of supplementation of methionine chelated trace minerals on growth, nutrient utilization and blood profiles in crossbred (Hampshire X Ghungroo) finisher pigs

Barman, Keshab / Konwar, Dipanjali / Sarma, D.K. / Thomas, R. / Naskar, S. / Pegu, S.R. / Banik, S. / Mohan, N.H. / Tamuli, M.K. / Kaushik, Purabi / Rajkhowa, S.

ANIMAL NUTRITION AND FEED TECHNOLOGY. 2022 Jan., v. 22, no. 1

2022

Abstract: Barman, Keshab, Konwar, Dipanjali, Sarma, D.K., Thomas, R., Naskar, S., Pegu, S.R., Banik, S., Mohan, N.H., Tamuli, M.K., Kaushik, Purabi and Rajkhowa, S. 2022. Effect of supplementation of methionine chelated trace minerals on growth, nutrient ... ...

Abstract	Barman, Keshab, Konwar, Dipanjali, Sarma, D.K., Thomas, R., Naskar, S., Pegu, S.R., Banik, S., Mohan, N.H., Tamuli, M.K., Kaushik, Purabi and Rajkhowa, S. 2022. Effect of supplementation of methionine chelated trace minerals on growth, nutrient utilization and blood profiles in crossbred (Hampshire X Ghungroo) finisher pigs. Animal Nutrition and Feed Technology, 22: 31–39. The study was conducted to find out the effect of supplementation of chelated and non-chelated trace minerals on performance of crossbred finisher pigs for a period of 171 days. Eighteen crossbred (Hampshire x Ghungroo) finisher pigs (about 5 months old, 38.5 + 0.27 to 39.7+0.12 kg BW) of either sex were divided into three groups of six each in a randomized block design. Methionine chelated trace mineral mixture was supplemented to the basal diet @ 0 level, low level (Cu-M: 6 ppm, Zn-M: 46 ppm, Co-M: 1.6 ppm, Fe-M: 75 ppm) and high level (Cu-M: 9 ppm, Zn-M: 70 ppm, Co-M: 3.5 ppm, Fe-M: 90 ppm) and designated as Tₜ T₂ and T₃ groups, respectively. Dry matter intake (kg/d) was 1.467+0.07, 1.384+0.109 and 1.324 + 0.159, respectively, in Tₜ, T₂ and T₃ groups. Digestibility coefficients of dry matter, organic matter, crude protein, ether extract and crude fiber were increased non significantly in chelated trace mineral supplemented groups, while nitrogen free extracts did not follow any pattern. There was no significant difference on average daily gain, feed conversion ratio among the groups. The cost (Rs/kg gain) of production per kg live weight was reduced non significantly by Rs.8.2 and Rs.14.5 in T₂ and T₃ groups in comparison to control group. The WBC, granulocyte and monocytes levels increased (P<0.05) in supplemented groups. It is concluded that supplementation of chelated trace minerals namely Cu-methinonine, Zn-methionine, Co-methionine and Fe-methionine at 9, 70, 3.5 and 90 ppm beneficially effect the production performances in finisher crossbred (Hampshire x Ghungroo) pigs.
Schlagwörter	average daily gain ; body weight ; crossbreds ; crude fiber ; crude protein ; diet ; digestibility ; dry matter intake ; feed conversion ; methionine ; monocytes ; nitrogen ; organic matter ; technology ; trace elements
Sprache	Englisch
Erscheinungsverlauf	2022-01
Umfang	p. 31-39.
Erscheinungsort	Animal Nutrition Association
Dokumenttyp	Artikel
ISSN	0974-181X
DOI	10.5958/0974-181X.2022.00003.8
Datenquelle	NAL Katalog (AGRICOLA)

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Artikel: Characterization of Secondary Structure of Pig Hair Fiber Using Fourier-transform Infrared Spectroscopy

Mohan, N. H. / Choudhury, M. / Ammayappan, L. / Pathak, Prajwalita / Chakraborty, Sujay / Thomas, R. / Debnath, S. / Paul, Maitry / Sarma, D. K.

Journal of natural fibers. 2022 Nov. 02, v. 19, no. 11

2022

Abstract: Hair or bristle is one of the key by-products of humane slaughter of pigs. In the present study, Fourier-transform infrared (FTIR) spectroscopy was used for examining protein secondary structure of hair fiber from different breeds of pigs (Ghungroo, ... ...

Abstract	Hair or bristle is one of the key by-products of humane slaughter of pigs. In the present study, Fourier-transform infrared (FTIR) spectroscopy was used for examining protein secondary structure of hair fiber from different breeds of pigs (Ghungroo, Ninag Megha, Hampshire, and Duroc). Prominent amide I (1635–1648 cm⁻¹) and amide II (1517–1528 cm ⁻¹) bands could be observed in the spectra. Differences in presence/absence of certain FTIR bands between breeds suggests influence of genetic background in the structure of hair fiber. Deconvolution resolved secondary structure of protein in amide I region of spectra into corresponding α-helix (38.0 ± 2.9%), β-sheets (32.2 ± 2.0%), β-turns (19.4 ± 3.1%) and unorganized structural components (10.3 ± 2.5%). Heating of fibers from 80°C to 120°C resulted in changes in amide regions and α-helix to β-sheet ratio of amide I band. Further, correlations were calculated between area under the curve of various FTIR bands and tensile properties of the fiber. Area of FTIR band at 1635 cm ⁻¹ was positively correlated with tenacity, initial modulus, extensibility, and work of rupture (r = 0.30 to 0.39). In nutshell, the study reveals subtle differences in secondary structure of hair with respect to breed or temperature treatment and suggests relation between FTIR spectral characteristics and tensile properties.
Schlagwörter	Duroc ; Fourier transform infrared spectroscopy ; extensibility ; genetic background ; hulls ; protein secondary structure ; slaughter ; temperature
Sprache	Englisch
Erscheinungsverlauf	2022-1102
Umfang	p. 4223-4235.
Erscheinungsort	Taylor & Francis
Dokumenttyp	Artikel
ZDB-ID	2182715-1
ISSN	1544-046X ; 1544-0478
ISSN (online)	1544-046X
ISSN	1544-0478
DOI	10.1080/15440478.2020.1856272
Datenquelle	NAL Katalog (AGRICOLA)

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Artikel: Establishment of bilateral symmetry and accuracy of carcass data estimates in Ghungroo pig carcass

Thomas, R / Banik, S / Barman, K / Mohan, N.H / Sarma, D.K

Indian journal of animal research. 2019 Apr., v. 53, no. 4

2019

Abstract: Ghungroo is the first registered pig breed of indigenous origin in India. The work was designed to develop a reference dissection method for carcasses by establishing bi-lateral symmetry and to determine whether or not differences exist between right and ...

Abstract	Ghungroo is the first registered pig breed of indigenous origin in India. The work was designed to develop a reference dissection method for carcasses by establishing bi-lateral symmetry and to determine whether or not differences exist between right and left sides of pig carcasses for some precisely measured physical and chemical traits. Carcass evaluation procedures could be simplified if selected measurements from one side accurately reflect the composition or meat quality of the entire carcass. Forty pigs of Ghungroo breed were selected to represent equally two sexes and two market weight groups. The pigs were slaughtered and after the carcasses were chilled they were carefully split into left and right sides. Least correlation coefficient (0.961) was observed for carcass length. The weights of all the five muscles evaluated differed slightly, but the left and right averages were not significantly different. Similarly, the mean difference for total intramuscular fat between left and right units of a muscle pair was not significant for any of the five muscles studied. Thus, the data obtained from left side of a Ghungroo pig carcass apparently was sufficiently accurate for most experimental purposes.
Schlagwörter	animal research ; carcass evaluation ; dissection ; intramuscular fat ; markets ; meat quality ; muscles ; pig carcasses ; swine ; swine breeds ; India
Sprache	Englisch
Erscheinungsverlauf	2019-04
Umfang	p. 496-499.
Erscheinungsort	Agricultural Research Communication Centre
Dokumenttyp	Artikel
Anmerkung	NAL-light
ISSN	0976-0555
DOI	10.18805/ijar.B-3525
Datenquelle	NAL Katalog (AGRICOLA)

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Artikel: Profiles of colour, minerals, amino acids and fatty acids in Asha, the triple cross (Ghungroo x Hampshire x Duroc) fattener pig variety

Thomas, R / Banik, S / Barman, K / Mohan, N.H / Sarma, D.K

Indian journal of animal research. 2019 Apr., v. 53, no. 4

2019

Abstract: Carcass composition and meat quality were evaluated for Asha, a triple cross pig (Ghungroo x Hampshire x Duroc, G₂₅H₂₅D₅₀), which was developed and released by ICAR-National Research Centre on Pig as a fattener pig variety. A total of 14 gilts and 20 ... ...

Abstract	Carcass composition and meat quality were evaluated for Asha, a triple cross pig (Ghungroo x Hampshire x Duroc, G₂₅H₂₅D₅₀), which was developed and released by ICAR-National Research Centre on Pig as a fattener pig variety. A total of 14 gilts and 20 barrows from triple cross pigs were slaughtered at the age of 10 months for evaluating the different parameters. Instrumental colour measurement indicated that the coordinates were in the following range: lightness (L), 38.91–53.75; redness (a, red ± green), 6.83–11.96; and yellowness (b*, yellow ± blue), 11.38–18.49. The mineral contents in the M. longissimus thoracis et lumborum were in the following range: potassium, 268–334 mg/100g; zinc, 0.59–0.83 mg/100g; copper, 0.04–0.1 mg/100g; manganese, 0.01–0.06 mg/100g and magnesium, 4.53–7.74 mg/100g. Significant (P>0.05) differenceswerenot observed in the concentration of any of the estimated amino acids between the sexes. Fatty acid profiling of M. longissimus thoracis et lumborum indicated that saturated and unsaturated fatty acids were in the range of 31.14%-38.65% and 60.27%-69.49%, respectively. Results further indicated a concentration of 0.91%-1.70% omega-3 fatty acids; 15.87%-22.13% omega-6 fatty acids and 15.66%-24.17% essential fatty acids in the muscle tissues.
Schlagwörter	Duroc ; animal research ; carcass composition ; color ; copper ; longissimus muscle ; magnesium ; manganese ; meat quality ; potassium ; zinc
Sprache	Englisch
Erscheinungsverlauf	2019-04
Umfang	p. 435-440.
Erscheinungsort	Agricultural Research Communication Centre
Dokumenttyp	Artikel
Anmerkung	NAL-light
ISSN	0976-0555
DOI	10.18805/ijar.B-3527
Datenquelle	NAL Katalog (AGRICOLA)

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Artikel ; Online: SCC mec typing and antimicrobial resistance of methicillin-resistant Staphylococcus aureus (MRSA) from pigs of Northeast India.

Rajkhowa, S / Sarma, D K / Pegu, S R

Veterinary research communications

2016 Band 40, Heft 3-4, Seite(n) 117–122

Abstract: Staphylococcus aureus is one of the most important pathogens of both humans and animal. Methicillin-resistant Staphylococcus aureus (MRSA) is an important human pathogen that causes serious infections both in hospitals and communities due to its ... ...

Abstract	Staphylococcus aureus is one of the most important pathogens of both humans and animal. Methicillin-resistant Staphylococcus aureus (MRSA) is an important human pathogen that causes serious infections both in hospitals and communities due to its multidrug resistance tendency. This study was undertaken to characterize the MRSA isolates from pigs and to determine the antimicrobial resistance of these isolates. Forty nine MRSA strains (one strain per positive pig) isolated from pigs of Northeast India were characterized by SCCmec typing and antimicrobial resistance. The overall prevalence of MRSA was 7.02 % with the highest prevalence recorded in pigs aged 1-3 months (P = 0.001) and in nasal samples (P = 0.005). Two SCC mec types (type III and V) were found in Indian pigs with predominance of type V. All isolates were resistant to penicillin. Seventeen resistance groups were observed where 87.75 % isolates showed multidrug resistance (showed resistance to three or more classes of antimicrobials). The most predominant resistance pattern observed was Oxytetracycline + Penicillin + Sulfadiazine + Tetracycline accounting 12.24 % of the isolates. The present study contributes to the understanding of characteristics and antimicrobial resistance of porcine MRSA isolates which in turn will help in devising strategy for the control of this pathogen. Findings of the study also throw light on multidrug resistance MRSA and emphasize the need for judicious use of antimicrobials in animal practice.
Mesh-Begriff(e)	Animals ; Anti-Bacterial Agents/pharmacology ; Bacterial Proteins/metabolism ; Bacterial Typing Techniques ; Drug Resistance, Bacterial ; Drug Resistance, Multiple ; India ; Methicillin-Resistant Staphylococcus aureus/classification ; Methicillin-Resistant Staphylococcus aureus/drug effects ; Methicillin-Resistant Staphylococcus aureus/isolation & purification ; Swine/microbiology
Chemische Substanzen	Anti-Bacterial Agents ; Bacterial Proteins
Sprache	Englisch
Erscheinungsdatum	2016-12
Erscheinungsland	Netherlands
Dokumenttyp	Journal Article
ZDB-ID	406735-6
ISSN	1573-7446 ; 0165-7380
ISSN (online)	1573-7446
ISSN	0165-7380
DOI	10.1007/s11259-016-9661-x
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel: Effect of different genetic and non-genetic factors on pre weaning litter and growth performance of pigs

Kaushik, Purabi / Banik, S / Naskar, S / Barman, K / Das, A.K / Sarma, D.K

Indian journal of animal research. 2017 Feb., v. 51, no. 1

2017

Abstract: The study was carried out on two different genetic groups of pig viz. Duroc and Hampshire maintained at pig breeding farm of National Research Centre on Pig, Guwahati. Effect of different genetic group and non-genetic factors (year and season of ... ...

Abstract	The study was carried out on two different genetic groups of pig viz. Duroc and Hampshire maintained at pig breeding farm of National Research Centre on Pig, Guwahati. Effect of different genetic group and non-genetic factors (year and season of farrowing and parity) were estimated by least squares analysis of variance for different litter production, weight and pre weaning growth rate. Genetic group and parity revealed highly significant (P<0.01) effect on all the traits under study. However, effect of year and season of birth was non significant in most of the cases. The pre weaning mortality of Hampshire pigs was found to be less than Duroc. The performance of litter production and weight traits of Hampshire pigs were found to be better than Duroc pigs in the farm.
Schlagwörter	Duroc ; animal research ; farms ; growth performance ; mortality ; swine
Sprache	Englisch
Erscheinungsverlauf	2017-02
Umfang	p. 179-181.
Erscheinungsort	Agricultural Research Communication Centre
Dokumenttyp	Artikel
Anmerkung	NAL-light
ISSN	0976-0555
DOI	10.18805/ijar.v0iOF.7005
Datenquelle	NAL Katalog (AGRICOLA)

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Artikel: Antioxidant and antimicrobial effects of kordoi (Averrhoa carambola) fruit juice and bamboo (Bambusa polymorpha) shoot extract in pork nuggets.

Thomas, R / Jebin, N / Saha, R / Sarma, D K

Food chemistry

2016 Band 190, Seite(n) 41–49

Abstract: Pork nuggets with 'very good' acceptability was processed by incorporating kordoi (Averrhoa carambola) fruit juice and bamboo (Bambusa polymorpha) shoot extract, and their physical, chemical, microbiological and sensorial characteristics were evaluated ... ...

Abstract	Pork nuggets with 'very good' acceptability was processed by incorporating kordoi (Averrhoa carambola) fruit juice and bamboo (Bambusa polymorpha) shoot extract, and their physical, chemical, microbiological and sensorial characteristics were evaluated during 35 days storage under refrigeration. Addition of kordoi fruit juice (4%) and bamboo shoot extract (6%) had a significant effect on the pH, moisture, protein, fat, fiber, instrumental color values and texture profiles of nuggets. Nuggets with juice and extract had significantly lower TBARS values towards the end of the storage period compared to the control. Microbial and sensory qualities of nuggets were significantly improved by the addition of juice and extract. Incorporation of juice and extract at 4% and 6% levels, respectively, increased the storage life of pork nuggets by at least two weeks, i.e. from 21 days to 35 days at 4 ± 1 °C compared to the control.
Mesh-Begriff(e)	Animals ; Anti-Infective Agents/analysis ; Antioxidants/analysis ; Averrhoa/chemistry ; Bambusa/chemistry ; Fruit/chemistry ; Fruit and Vegetable Juices/analysis ; Meat Products/analysis ; Red Meat ; Refrigeration ; Swine
Chemische Substanzen	Anti-Infective Agents ; Antioxidants
Sprache	Englisch
Erscheinungsdatum	2016-01-01
Erscheinungsland	England
Dokumenttyp	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	243123-3
ISSN	1873-7072 ; 0308-8146
ISSN (online)	1873-7072
ISSN	0308-8146
DOI	10.1016/j.foodchem.2015.05.070
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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