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  1. Entomophagy, the consumption of insects, is a common practice among various tribal communities across the globe. Various factors such as flavour, nutrient content, availability and claimed medicinal values hav...

    Authors: Kushal Choudhury, Dipamani Sarma, Pforeni Jane Sapruna and Amar Deep Soren

    Citation: Bulletin of the National Research Centre 2020 44:152

    Content type: Research

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  2. The dissolution process kinetics and optimization of iron from Akwuke ore were investigated in this study. The effects of process parameters such as agitation rate and ore particle size on the dissolution proc...

    Authors: Kingsley Amechi Ani and Chidubem Chukwuebuka Chukelu

    Citation: Bulletin of the National Research Centre 2020 44:151

    Content type: Research

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  3. Peach fruits are highly perishable leading to many pre- and post-harvest problems, which adds to the reduction in the potential yield and productivity. Chitosan is a natural polysaccharide, produced after alka...

    Authors: Muhammad Sajid, Abdul Basit, Zafar Ullah, Syed Tanveer Shah, Izhar Ullah, Heba I. Mohamed and Inayat Ullah

    Citation: Bulletin of the National Research Centre 2020 44:150

    Content type: Research

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  4. The study examined the effects of Myristica fragrans seed meal (MSM) and Syzygium aromaticum leaf meal (SLM) dietary supplementation on the growth performance, health status, and meat quality of broiler chicken.

    Authors: Olufemi Adesanya Adu, Francis Ayodeji Gbore, Olugbenga David Oloruntola, Andrew Bamidele Falowo and Olumuyiwa Joseph Olarotimi

    Citation: Bulletin of the National Research Centre 2020 44:149

    Content type: Research

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  5. This study was conducted to estimate the antifungal activity and efficiency of purified killer toxins (TK and WK) produced by Torulaspora delbrueckii and Wickerhamomyces anomalus as alternative drugs of resistant...

    Authors: Najwa Mohammed Jameel Ali Abu-Mejdad, Abdullah H. Al-Saadoon, Adnan I. Al-Badran and Mohammed Hussein Minati

    Citation: Bulletin of the National Research Centre 2020 44:148

    Content type: Research

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  6. Alteration in the normal composition of gasses in the atmosphere referred to as air pollution can occur as a result of different processes, including emissions from vehicles and power generators. Gasses affect...

    Authors: Kayode Peter Balogun, Abiola Titilola Aborisade and Oluwole Olakunle Oladele

    Citation: Bulletin of the National Research Centre 2020 44:147

    Content type: Research

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  7. An amendment to this paper has been published and can be accessed via the original article.

    Authors: Soumen Bera, Sibsankar Das and Dharmadas Kalindi

    Citation: Bulletin of the National Research Centre 2020 44:145

    Content type: Correction

    Published on:

    The original article was published in Bulletin of the National Research Centre 2020 44:124

  8. The context and purpose of the study. The world has turned to the technology of organic agriculture to obtain safe food and preserve the environment, and there have become many standards that control the produ...

    Authors: Abdu Omran Mohamed, Yousria Ahmed Allam and Ismail Ibrahim Hassen

    Citation: Bulletin of the National Research Centre 2020 44:144

    Content type: Research

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  9. Investigation on genetic variability and correlation study between yield and its components of genotypes on rice may increase the opportunity to exploit its potential which will help meet the demand of high gr...

    Authors: Maysoun M. Saleh, Khaled F. M. Salem and Abdelmoaty B. Elabd

    Citation: Bulletin of the National Research Centre 2020 44:143

    Content type: Research

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  10. Metabolomics of Camellia japonica leaf has been studied to identify the terpenoids present in it and their interrelations regarding biosynthesis as most of their pathways are closely situated. Camellia japonica i...

    Authors: Soumya Majumder, Arindam Ghosh and Malay Bhattacharya

    Citation: Bulletin of the National Research Centre 2020 44:141

    Content type: Research

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  11. Flexibility during bending is a critical feature that influences the performance and safety of endodontic nickel-titanium rotary instruments. Flexibility of the endodontic files could be assessed via laborator...

    Authors: Amira Galal Ismail, Manar Galal, Mohamed H. Zaazou, Tamer M. Hamdy and Rasha M. Abdelraouf

    Citation: Bulletin of the National Research Centre 2020 44:140

    Content type: Research

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  12. This recent investigation aimed to detect and characterize the genetic variabilities and genetic similarity in Orobanche crenata collected from naturally Orobanche-infested field at Gemmeiza Research Station, Agr...

    Authors: M. M. F. Abdalla, Heba A. M. A. Saleh and M. A. Khater

    Citation: Bulletin of the National Research Centre 2020 44:139

    Content type: Research

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  13. Free radical attack of cellular structures in the human system is the major cause of various forms of degenerative diseases. Consequently, recent research has been focused on the development of new antioxidant...

    Authors: Ikechukwu Ogadimma Alisi, Adamu Uzairu and Stephen Eyije Abechi

    Citation: Bulletin of the National Research Centre 2020 44:137

    Content type: Research

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  14. QSAR modelling was performed on thirty-five (35) newly discovered compounds of N-(2-phenoxy) ethyl imidazo[1,2-a] pyridine-3-carboxamide (IPA) to predict their biological activities against Mycobacterium tubercul...

    Authors: Mustapha Abdullahi, Shola Elijah Adeniji, David Ebuka Arthur and Shuaibu Musa

    Citation: Bulletin of the National Research Centre 2020 44:136

    Content type: Research

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  15. The present study evaluated levels of polymerization of deoxygenated sickle hemoglobin molecules (poly-dHbS-M) in the presence of fractionated leaf extracts of Anacardium occidentale Linn., Psidium guajava Linn.,...

    Authors: Paul C. Chikezie, Raphael C. Ekeanyanwu and Adaeze B. Chile-Agada

    Citation: Bulletin of the National Research Centre 2020 44:135

    Content type: Research

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  16. Peanut (Arachis hypogaea L.) is considered one of the most important legume and oil crops in Egypt. Root-knot nematodes Meloidogyne spp. is the most damaging nematodes of peanut. Losses can exceed 50% in severely...

    Authors: Hamida Ahmed Osman, Hoda Hussein Ameen, Moawad Mohamed and Usama Samy Elkelany

    Citation: Bulletin of the National Research Centre 2020 44:134

    Content type: Research

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  17. Assessment of the oil % in a representative sample of Salicornia bigelovii seeds with different extraction methods using some of the organic solvents to reach the best economic one and determination of the effect...

    Authors: R. El-Araby, A. I. Rezk, S. A. Abo El-Enin, O. A. Nofal and A. B. El-Nasharty

    Citation: Bulletin of the National Research Centre 2020 44:133

    Content type: Research

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  18. The reoccurrence of the resistant strains of Mycobacterium tuberculosis to available drugs/medications has mandated for the development of more effective anti-tubercular agents with efficient activities. Therefor...

    Authors: Shola Elijah Adeniji, David Ebuka Arthur, Mustapha Abdullahi and Olajumoke Bosede Adalumo

    Citation: Bulletin of the National Research Centre 2020 44:132

    Content type: Research

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  19. Osteogenesis and angiogenesis are two closely correlated processes during bone growth, development, remodeling, and repair. Vascular endothelial growth factor (VEGF) is an essential mediator during the process...

    Authors: Asmaa A. M. Rady, Soha M. Hamdy, Mohamed A. Abdel-Hamid, Marwa G. A. Hegazy, Shadia A. Fathy and Amany A. Mostafa

    Citation: Bulletin of the National Research Centre 2020 44:131

    Content type: Research

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  20. Helminthiasis infestation is one of the most widespread and severe public health problems in the world. These parasites cause several diseases like anemia, malnutrition, pneumonia, eosinophilia, and malaria. T...

    Authors: Kalpesh B. Ishnava and Karishma S. Patel

    Citation: Bulletin of the National Research Centre 2020 44:130

    Content type: Research

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  21. Culex mosquitoes are a major vector of public health importance and have been implicated for the transmission of some parasitic diseases such as lymphatic filariasis and West Nile virus. It has also been repor...

    Authors: Michael Olarewaju Akintan and Joseph Onaolapo Akinneye

    Citation: Bulletin of the National Research Centre 2020 44:129

    Content type: Research

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  22. This work was carried out through 2017 and 2018 seasons on tow olive cultivars (Kalmata and Manzanillo). Trees were 15 years old, grown in sandy soil, planted at 5 × 5 m apart, and irrigated with saline water ...

    Authors: Laila F. Hagagg, Mohamed A. Merwad, Mohamed M. F. Shahin and Eman S. El-Hady

    Citation: Bulletin of the National Research Centre 2020 44:128

    Content type: Research

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  23. The physico-chemical properties along with the insecticidal potency of seven non-traditional insecticides from different classes compared with three conventional insecticides were assessed versus Tuta absoluta (M...

    Authors: Mohamed Abdel-Hady Kandil, Elham Ahmed Sammour, Nahed Fawzy Abdel-Aziz, Essam Abd El Maguied Agamy, Ahmed Mohamed El-Bakry and Nasr Mohamed Abdelmaksoud

    Citation: Bulletin of the National Research Centre 2020 44:126

    Content type: Research

    Published on:

  24. An amendment to this paper has been published and can be accessed via the original article.

    Authors: Mohammad A L-Bahy M. Gamal Reda, Ashraf E L-Sherbiny Abd EL-Hady, Hassan Kawashty Gad, Mohammad Abd E L-Hady M. Aboelmakarem, Amir Abdel-Ghaffar Mohammady Nowar and Haytham Khalifa Hegazy

    Citation: Bulletin of the National Research Centre 2020 44:125

    Content type: Correction

    Published on:

    The original article was published in Bulletin of the National Research Centre 2020 44:56

  25. Strobilanthes kunthiana (Nees) T. Anderson ex Benth locally known as Neelakurinji is an endemic to Western Ghat, India and belongs to the Acanthaceae family. It has a unique flowering pattern to bloom every 12 ye...

    Authors: Soumen Bera, Sibsankar Das and Dharmadas Kalindi

    Citation: Bulletin of the National Research Centre 2020 44:124

    Content type: Review

    Published on:

    The Correction to this article has been published in Bulletin of the National Research Centre 2020 44:145

  26. Tomato crop, Lycopersicon esculentum L. (Solanaceae), usually attacked by many insect species, including the tomato leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), where its larvae cause damage up ...

    Authors: Nasr Mohamed Abdelmaksoud, Nahed Fawzy Abdel-Aziz, Elham Ahmed Sammour, Essam Abd El Maguied Agamy, Ahmed Mohamed El-Bakry and Mohamed Abdel-Hady Kandil

    Citation: Bulletin of the National Research Centre 2020 44:123

    Content type: Research

    Published on:

  27. Two cultivars (Balady and Dukat) of dill plants were grown in the Experimental Farm Station of Agriculture Faculty, Cairo University, during two seasons of 2014/2015 and 2015/2016. This investigation aims to d...

    Authors: Shaimaa I. M. Elsayed, A. A. Glala, Aboelfetoh M. Abdalla, Abd El Ghafour A. El-Sayed and Mona A. Darwish

    Citation: Bulletin of the National Research Centre 2020 44:122

    Content type: Research

    Published on:

  28. Geometrical designs of nickel-titanium (NiTi) rotary instruments have a considerable influence on their mechanical performance, and thereby have the tendency to fracture.

    Authors: Manar Galal and Tamer M. Hamdy

    Citation: Bulletin of the National Research Centre 2020 44:121

    Content type: Research

    Published on:

  29. The insecticidal activities of essential oils from seeds of five botanicals Tetrapleura tetraptera, Annona muricata, and Aframomum melegueta and leaves of Eucalyptus globulus and Ficus exasperata were evaluated a...

    Authors: Joy Ejemen Idoko and Kayode David Ileke

    Citation: Bulletin of the National Research Centre 2020 44:119

    Content type: Research

    Published on:

  30. This study aims to investigate the reproduction output of Archachatina marginata fed on roughage and concentrate feed with leaf meal-inclusive diets. One hundred fifty points of lay snails weighing between 150 an...

    Authors: Olatunji Abubakar Jimoh and Micheal Olawale Akinola

    Citation: Bulletin of the National Research Centre 2020 44:118

    Content type: Research

    Published on:

  31. Carbapenem antibiotics consider the primary treatment choice for serious Pseudomonas aeruginosa infection. Hence, the evolution of carbapenem resistance mediated by acquiring genes encoding class b enzymes is of ...

    Authors: Amr Mohamad Basha, Gamal M. El-Sherbiny and Mona I. Mabrouk

    Citation: Bulletin of the National Research Centre 2020 44:117

    Content type: Research

    Published on:

  32. The aim of this study was to compare the effect of different kinematics and operational temperature on cyclic fatigue resistance of Protaper Next, WaveOne Gold, and Twisted File Adaptive files in a static model.

    Authors: Amira Galal Ismail, Manar Galal and Mohamed Mokhtar Nagy

    Citation: Bulletin of the National Research Centre 2020 44:116

    Content type: Research

    Published on:

  33. Poultry semen cryopreservation remains an easy and promising way of preserving and transferring poultry germplasm. Standardizing and optimizing freezing procedure with natural extender may be a reliable step t...

    Authors: Adedeji Suleimon Balogun, Raman Narang, Ranjna S. Cheema, Ajeet Kumar, Narinder Singh and Malik Vijaysingh

    Citation: Bulletin of the National Research Centre 2020 44:115

    Content type: Research

    Published on:

  34. β-glucuronidase enzyme is mostly found in plants and animals. It plays a vital role in detoxification of reactive metabolites that are interrelated to several illnesses and the growth of colon cancer. It speed...

    Authors: Muhammad Tukur Ibrahim, Salisu Muhammad Tahir, Abdullahi Bello Umar and Usman Abdulfatai

    Citation: Bulletin of the National Research Centre 2020 44:114

    Content type: Research

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  35. In the current years, nematotoxic or antagonistic compounds for example, toxins, enzymes, or compounds derived from the metabolites of fungal culture filtrates have greatly increased.

    Authors: Mahmoud M. A. Youssef, Wafaa M. A. El-Nagdi and Dalia E. M. Lotfy

    Citation: Bulletin of the National Research Centre 2020 44:112

    Content type: Research

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  36. The confused flour beetles Tribolium confusum (Jacquelin) and red flour beetle Tribolium castaneum (Herbst) are widespread insects found in the stores and homes that attack many stored foods in several commoditie...

    Authors: Magda Mahmoud Amin Sabbour

    Citation: Bulletin of the National Research Centre 2020 44:111

    Content type: Research

    Published on:

  37. Understanding the mental foramen (MF) position and prevalence and location of the anterior loop (AL) is important during clinical and surgical procedures close to the mental foramen to avoid damage to the neur...

    Authors: M. Shalash, Maram E. Khallaf and A. R. Ali

    Citation: Bulletin of the National Research Centre 2020 44:110

    Content type: Research

    Published on:

  38. Amylases are amongst the most important hydrolytic enzymes that are used in numerous industrial uses reaching for food to pharmaceuticals. Immobilization of enzymes can proposal several assistances as reusabil...

    Authors: Nehad E. Ahmed, Aliaa R. El Shamy and Hassan M. Awad

    Citation: Bulletin of the National Research Centre 2020 44:109

    Content type: Research

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  39. Given the strategic importance of wheat being the staple food for the vast majority of people, it was necessary to know reasons for the contraction and decline of its area globally and consequently its lower y...

    Authors: Almoataz Bellah Ali El-Mouhamady and Hayam Fouad Ibrahim

    Citation: Bulletin of the National Research Centre 2020 44:108

    Content type: Research

    Published on:

  40. “Chemically enhanced primary treatment” (CEPT) is an approach to wastewater treatment. It can be utilized as a specially designed step in “biological” secondary treatment processes. The aim of this study is to...

    Authors: Ghada A. Al Bazedi and Mona A. Abdel-Fatah

    Citation: Bulletin of the National Research Centre 2020 44:107

    Content type: Research

    Published on:

  41. Olive tree is one of the most important and a widely distributed tree grown in many arid and semi-arid areas of the world. The production of olive in these areas is generally low due to the poor soil fertility...

    Authors: Esmail A. E. Genaidy, Nazmy Abd-Alhamid, Hassan S. A. Hassan, Ahmed M. Hassan and Laila F. Hagagg

    Citation: Bulletin of the National Research Centre 2020 44:106

    Content type: Research

    Published on:

  42. Coleus (family Lamiaceae) is a popular garden ornamental plant known for its bright-colored foliage. The effective role of different plant growth regulators have been widely reported in plant cultivars (Singh A a...

    Authors: Rashad M. Shoaib, Sami I. Ali, Sami A. Metwally, Mohamed M. Ibrahim and Kamal A. Aboud

    Citation: Bulletin of the National Research Centre 2020 44:105

    Content type: Research

    Published on:

  43. The main objective of the present study was production of xylanase from different agricultural wastes using Chaetomium globosum on pomegranate waste, isolation of fungi associated with some legumes seeds, and stu...

    Authors: Sherien M. M. Atalla and Nadia G. El Gamal

    Citation: Bulletin of the National Research Centre 2020 44:104

    Content type: Research

    Published on:

  44. The effects of dietary monosodium glutamate (MSG) on the serum electrolyte balance and antioxidant status of broiler chickens were assessed. In five replicates, a total of 300-day-old unsexed Abor–acre broiler...

    Authors: Olumuyiwa Joseph Olarotimi

    Citation: Bulletin of the National Research Centre 2020 44:103

    Content type: Research

    Published on:

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The NRC has to correspond to the country's key production and services sectors through the research conducted in different areas of science and technology, scientific consultation and training as well.

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The NRC mission is to conduct basic and applied research within the major fields of interest in order to develop production and services sectors.

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