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Muhammad YASIN,Waqas Wakil,Muhammad Usman GHAZANFAR,Mirza Abdul QAYYUM,Muhammad TAHIR,Geoffrey O. BEDFORD 한국곤충학회 2019 Entomological Research Vol.49 No.1
Nineteen different isolates of the entomopathogenic fungi Beauveria bassiana sensu lato (s.l.) and Metarhizium anisopliae s.l. (Ascomycota: Hypocreales), recovered from different soil samples (field crops, fruit orchards, vegetable fields and forests) and insect cadavers were tested against Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae) at two different spore concentrations (1 × 107 and 1 × 108 conidia mL−1). Three isolates of B. bassiana and two of M. anisopliae gave >88 % larval and >75 % adult mortality of R. ferrugineus on their highest dose rate respectively. More sporulating cadavers (mycosis) resulted from a high dose rate compared to low dose on both life stages of R. ferrugineus. The current study confirmed the lethal action of B. bassiana and M. anisopliae isolates with mortality levels usually directly proportional to the conidial concentration. This study further confirmed that the isolates recovered from R. ferrugineus dead cadavers gave more mortality compared to the other sources. In the virulence assay two isolates of B. bassiana caused the highest percentage of both larval and adult mortality at all exposure intervals which suggest that they may be the most promising for use in sustainable management programs aimed at microbial control in date palm orchards.
Aslam, Muhammad,Ahmad, Rizwan,Yasin, Muhammad,Khan, Asim Laeeq,Shahid, Muhammad Kashif,Hossain, Shakhawat,Khan, Zakir,Jamil, Farrukh,Rafiq, Sikander,Bilad, Muhammad Roil,Kim, Jeonghwan,Kumar, Gopalakr Elsevier 2018 Bioresource technology Vol.269 No.-
<P><B>Abstract</B></P> <P>Biohydrogen as one of the most appealing energy vector for the future represents attractive avenue in alternative energy research. Recently, variety of biohydrogen production pathways has been suggested to improve the key features of the process. Nevertheless, researches are still needed to overcome remaining barriers to practical applications such as low yields and production rates. Considering practicality aspects, this review emphasized on anaerobic membrane bioreactors (AnMBRs) for biological hydrogen production. Recent advances and emerging issues associated with biohydrogen generation in AnMBR technology are critically discussed. Several techniques are highlighted that are aimed at overcoming these barriers. Moreover, environmental and economical potentials along with future research perspectives are addressed to drive biohydrogen technology towards practicality and economical-feasibility.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Anaerobic membrane bioreactor technology for biohydrogen production is overviewed. </LI> <LI> Enhancement of biohydrogen yield and generation rates via various strategies is discussed. </LI> <LI> Techno-economic and environmental impacts of this approach are addressed. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Chemical, Antioxidant and Sensory Profiling of Vitamin K-rich Dietary Sources
Yasin, Muhammad,Butt, Masood Sadiq,Yasmin, Adeela,Bashir, Shahid The Korean Society for Applied Biological Chemistr 2014 Applied Biological Chemistry (Appl Biol Chem) Vol.57 No.2
In present research, vitamin K-rich dietary food products were prepared from spinach & soybean and evaluated for nutritional factors, phylloquinone and menaquinone-7 (MK-7) contents and sensory attributes. For the purpose, two spinach-based products (fresh cooked spinach (FCS), reconstituted spinach (RS), and fermented soybean (natto A; NA and Natto B; NB) were formulated. Nutritional composition indicated that natto were rich in protein and fat compared to spinach-based products. They also contained appreciable amount of mineral i.e. potassium, magnesium, calcium zinc, sodium cupper, and iron. High performance liquid chromatography revealed that FCS contained $368.81{\pm}13.96{\mu}g/100g$ of phylloquinone followed by $270.07{\pm}9.45{\mu}g/100g$ in RS, whereas minimum value $26.90{\pm}0.94{\mu}g/100g$ was observed in NA. However, maximum MK-7 concentration was recorded in NA at $803.82{\pm}21.14{\mu}g/100g$ trailed by NB $681.35{\pm}16.85{\mu}g/100g$. On the contrary, MK-7 was not detected in the spinach-based products. Antioxidant indices of products indicated that spinach-based products contained higher amount of the total phenolic content, DPPH free radical-scavenging activity, ferric reducing antioxidant power (FRAP), and antioxidant activity compared to natto. Sensory response of the products showed that spinach-based products attained higher scores than those of natto A and B. Conclusively, FCS and NA contained sufficient amount of phylloquinone and MK-7 along with antioxidant activity and has higher potential to modulate the coagulation and bone related abnormalities.
Muhammad Yasin,Waqas Wakil,Hamadttu A.F. EL-SHAFIE,Geoffrey O. BEDFORD,Thomas A. Miller 한국곤충학회 2017 Entomological Research Vol.47 No.4
The invasive Red Palm Weevil (RPW), Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae), is one of the most destructive pests of ornamental and economically important palms globally. It has been found in 50 % of date‐growing and 15 % of coconut‐producing countries in the world. Synthetic organic insecticides have been the default method to combat this pest, but they are clearly inefficient due to the secretive nature of the insect and there is concern about non‐target effects from blanket spraying. For this reason, there is increasing interest in biological control methods such as the possible use of microbial entomopathogens, which might be incorporated into IPM approaches. In this review we summarize research work on microbial control agents, their effectiveness against RPW and their integration with other control measures.
Chemical, Antioxidant and Sensory Profiling of Vitamin K-rich Dietary Sources
Muhammad Yasin,Masood Sadiq Butt,Adeela Yasmin,Shahid Bashir 한국응용생명화학회 2014 Applied Biological Chemistry (Appl Biol Chem) Vol.57 No.2
In present research, vitamin K-rich dietary food productswere prepared from spinach & soybean and evaluated for nutritionalfactors, phylloquinone and menaquinone-7 (MK-7) contents andsensory attributes. For the purpose, two spinach-based products(fresh cooked spinach (FCS), reconstituted spinach (RS), andfermented soybean (natto A; NA and Natto B; NB) wereformulated. Nutritional composition indicated that natto were richin protein and fat compared to spinach-based products. They alsocontained appreciable amount of mineral i.e. potassium, magnesium,calcium zinc, sodium cupper, and iron. High performance liquidchromatography revealed that FCS contained 368.81±13.96 μg/100 g of phylloquinone followed by 270.07±9.45 μg/100 g in RS,whereas minimum value 26.90±0.94 μg/100 g was observed inNA. However, maximum MK-7 concentration was recorded in NAat 803.82±21.14 μg/100 g trailed by NB 681.35±16.85 μg/100 g. On the contrary, MK-7 was not detected in the spinach-basedproducts. Antioxidant indices of products indicated that spinachbasedproducts contained higher amount of the total phenoliccontent, DPPH free radical-scavenging activity, ferric reducingantioxidant power (FRAP), and antioxidant activity compared tonatto. Sensory response of the products showed that spinachbasedproducts attained higher scores than those of natto A and B. Conclusively, FCS and NA contained sufficient amount ofphylloquinone and MK-7 along with antioxidant activity and hashigher potential to modulate the coagulation and bone relatedabnormalities.
Effect of Reduced Oxygen Concentration on the Germination Behavior of Vegetable Seeds
Muhammad Yasin,Christian Andreasen 한국원예학회 2016 Horticulture, Environment, and Biotechnology Vol.57 No.5
Oxygen (O2) in the soil is necessary for the germination of seeds, but it can be reduced by excessivewater contents, compaction, compression, and hard surfaces. Reduced O2 concentrations may change the germinationsuccess (proportion of seeds germinated; d) and speed (time to reach 50% germination; t50) of seeds. Independent laboratory experiments tested the germination of nine economically valuable vegetable species at five O2 concentrations (20.9, 15, 10, 5, and 2.5%). Members of the Asteraceae (butterhead lettuce and iceberg lettuce) and Brassicaceae (broccoli and white cabbage) families germinated best at 20.9% O2 and 15% O2, but were also able to germinate at 5-2.5% O2. Members of the Apiaceae (carrot, celeriac, and parsley) were sensitive to 5-2.5% O2 concentrations, which reduced their d and increased their t50. The germination rate of Swiss chard (Amaranthaceae) consistently declined as O2 concentrations educed from 20.9% O2 to 2.5% O2. There was a slight variation in the germination response to O2 concentration between the morphotypes of Brassica oleracea, (white cabbage, broccoli and cauliflower), although it was unclear whether this was related to seed age, genetic variation, or the conditions experienced during seed production or storage. The seeds of the Brassicaceae (broccoli and white cabbage) and Asteraceae (butterhead lettuce and iceberg lettuce) were less sensitive to reduced O2 concentrations and therefore may be more suitable for soils suffering from low O2 concentrations, such as compacted soils with hard surfaces or waterlogged soils.
Khalid, Azqa,Aslam, Muhammad,Qyyum, Muhammad Abdul,Faisal, Abrar,Khan, Asim Laeeq,Ahmed, Faisal,Lee, Moonyong,Kim, Jeonghwan,Jang, Nulee,Chang, In Seop,Bazmi, Aqeel Ahmed,Yasin, Muhammad Elsevier 2019 RENEWABLE & SUSTAINABLE ENERGY REVIEWS Vol.105 No.-
<P><B>Abstract</B></P> <P>Bioethanol has garnered a great interest as a potential energy source, mainly due to its sustainable and green nature. Generally, bioethanol is produced through the microbial conversion of biomass and biomass derived syngas. However, the dehydration and purification steps for achieving fuel-grade ethanol from the microbial production process consume tremendous amounts of energy. This high energy consumption limits the feasibility of microbial ethanol production on the commercial scale. In this context, selection of an optimal technology for product separation is essential for successful commercialization of microbially produced bioethanol. This article presents the recent developments in dehydration and purification technologies for bioethanol production using distillation and membrane based separation. Distillation and pervaporation are analyzed on the basis of the overall energy requirement, consumption, and economics. Pervaporation-assisted distillation approaches are also examined from the perspective of process systems engineering, including factors affecting the system performance. Furthermore, the role of simulation in technological development along with available mathematical models is discussed, and commercial status of pervaporation based separation is presented. Finally, the current status of the existing technology, challenges, and future research directions are identified from the perspective of achieving process sustainability on the industrial scale. Economic comparison between distillation and different hybrid schemes revealed that integrating distillation with membrane based separation techniques reduce the bioethanol production cost. Moreover, hybrid schemes that combine distillation with pervaporation, and steam stripping with vapor permeation are proved to be the best combinations for the cheapest bioethanol production.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Recent developments in dehydration of bioethanol are presented. </LI> <LI> Conventional and membrane-based technologies are compared. </LI> <LI> Integrating pervaporation with distillation reduce the bioethanol production cost. </LI> <LI> The most economical hybrid schemes for bioethanol separation is identified. </LI> <LI> Operational optimization and thermodynamic evaluation of hybrid processes are required. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>