Research Publications (Food Safety)

Author(s): N. Manu, E.A. Osekre, G.P. Opit, F.H. Arthur, G. Mbata, P. Armstrong, J.K. Danso, S.G. McNeill, J. Campbell

This research was done on the assumption that the risk for hepatocellular carcinoma (HCC) development that attributed to the consumption of highly contaminated food (HCF) with aflatoxin, may have a major contribution to the total of expected risk. If this hypothesis is true, it is easy to apply an effective and low‐cost intervention approach by excluding HCF and then subjecting it to treatments before use.

Fungal contamination of food and animal feed, especially by mycotoxigenic fungi, is not only a global food quality concern for food manufacturers, but it also poses serious health concerns because of the production of a variety of mycotoxins, some of which present considerable food safety challenges.

Fungal mycotoxins are important contaminants of agricultural commodities that pose serious concerns to producers, consumers and exporters. Aflatoxin is a carcinogenic metabolite produced by the fungi Aspergillus flavus and A. parasiticus. These fungi and other mould species living in the soil contaminate several crops including maize.

BACKGROUND Aspergillus flavus is a major pollutant in moldy peanuts, and it has a large influence on the taste of food. The secondary metabolites of Aspergillus flavus, including aflatoxin B1 (AFB1) and aflatoxin B2 (AFB2), are highly toxic and can expose humans to high risk. The total mold count (TMC) is an important index to determine the contamination degree and hygiene quality of peanut.

The effect of dietary aflatoxin B1 (AFB1) and Salmonella Enteritidis infection on intestinal permeability was investigated.

The aims of this study were to analyse the occurrence of aflatoxins, aflatoxin M1 (AFM1), fumonisins, ochratoxin A (OTA), patulin (PAT), zearalenone (ZEN) and deoxynivalenol (DON) in foodstuffs consumed in Chile between 2008 and 2017 and to estimate the contribution of main contaminated foodstuff in human exposure by the probable daily intake (PDI) estimation.

This study attempts to evaluate the potential aflatoxin binder activity of a molecularly imprinted polymer (TMU95) synthesized to target the aflatoxin B1 (AFB1) analog molecule in comparison to a commercial toxin binder (CTB). Adsorption experiments were carried out to assess the ability to bind to AFB1 at various pH values. The strength of binding was investigated by the chemisorption index. The isothermal analysis was used to determine the maximum adsorption capacity values.

A study was conducted to investigate the frequency and levels of AFM1 and AFM2 in urine from children who attended the emergency service of a pediatric referral hospital in Bogota, Colombia. A survey on the consumption of foods likely to be a source of aflatoxins and on sociodemographic variables was conducted as well.

This work characterizes the adsorption of aflatoxin B1 (AFB1), ochratoxin A (OTA), and zearalenone (ZEN) by dry micronized olive pomace (OliPom) and grape stems (GrapStem). Their performance was compared with that of three other materials, activated carbon (ActCarb), bentonite (Bent), and a commercial product (ComProd). Experiments were conducted in vitro at several pH values using buffer solutions.

The objectives of the present work were to survey, for the first time, the contamination of Portuguese fresh and dry-cured meat products with ochratoxin A (OTA) and aflatoxin B1 (AFB1), and to determine the fungi potentially responsible for this contamination. A total of 128 samples including pork fresh legs, dry-cured legs and shoulders, as well as goat and sheep dry-cured legs were analysed. Mycological analysis of these samples yielded a total of 630 fungal isolates.

In this study, the new approach of dispersive micro-solid phase extraction using a magnetic sheet was developed. A circle magnetic sheet (diameter, 25 mm; thickness, 0.4 mm) was perforated and used as a support for fixing and re-collecting three-dimensional magnetic graphene nanoparticles as an adsorbent. The method was coupled with high-performance liquid chromatography-fluorescence detector (HPLC-FLD) and utilized for extraction of aflatoxins (B1, B2, G1, and G2).

Author(s): Manal O. Abuagela, Basheer M. Iqdiam, Hussein Mostafa, Sara M. Marshall, Yavuz Yagiz, Maurice R. Marshall, Liwei Gu, Paul Sarnoski

Author(s): M. Rodríguez-Blanco, A.J. Ramos, V. Sanchis, S. Marín

Author(s): Yuanyuan Hui, Bini Wang, Rong Ren, Aiqing Zhao, Fuxin Zhang, Shuanghong Song, Yaping He

Author(s): Jianglin Xiong, Lijuan Peng, Hualin Zhou, Bo Lin, Pingyu Yan, Wenxuan Wu, Yulan Liu, Lingying Wu, Yinsheng Qiu

Abstract

The objective of this study was to survey the prevalence of aflatoxin M1 (AFM1) in raw, pasteurized, extended shelf life (ESL) and UHT milk from central-south China. A total of 734 milk samples, comprising raw milk (133 samples), pasteurized milk (410), ESL milk (93) and UHT milk (98), were obtained between Nov. 01, 2018 and Mar. 31, 2019.

Author(s): Nysrine Mannani, Ahmed Tabarani, El Hassane Abdennebi, Abdellah Zinedine

Author(s): Belén Peromingo, Daniel Caballero, Alicia Rodríguez, Andrés Caro, Mar Rodríguez

Author(s): Belal J. Muhialdin, Hussein L. Algboory, Hana Kadum, Nameer K. Mohammed, Nazamid Saari, Zaiton Hassan, Anis Shobirin Meor Hussin

Author(s): Qifang Wu, Huirong Xu

Author(s): Carolina Fernanda Sengling Cebin Coppa, Amin Mousavi Khaneghah, Paula Alvito, Ricardo Assunção, Carla Martins, Ismail Eş, Bruna Leonel Gonçalves, Diane Valganon de Neeff, Anderson S. Sant'Ana, Carlos Humberto Corassin, Carlos Augusto Fernandes Oliveira

Author(s): M.P. Thanushree, D. Sailendri, K.S. Yoha, J.A. Moses, C. Anandharamakrishnan

Abstract

Background

Among several food and agricultural commodities, spices are valued for their characteristic flavor. They may also impart color and improve the overall keeping quality of the food. Apart from being used in various indigenous recipes and cuisines, spice and spice extracts are used in traditional medicines, cosmetics, and in a range of other applications.

Author(s): Ayman A. Hassan, Salma H. Abu Hafsa, Mona M.M.Y. Elghandour, Poonooru Ravi Kanth Reddy, Jose Cedillo Monroy, Abdelfattah Z.M. Salem

Author(s): P. Dhanamjayulu, Ramesh Babu Boga, Alka Mehta

Author(s): Hiba N. Rajha, Anna-Maria Abi-Khattar, Sally El Kantar, Nadia Boussetta, Nikolai Lebovka, Richard G. Maroun, Nicolas Louka, Eugene Vorobiev