Jamilu Sani | Usmanu Dan Fodiyo University, Sokoto-Nigeria (original) (raw)

Papers by Jamilu Sani

The waste snail shell was screened to determine its efficiency as heterogeneous catalyst for biod... more The waste snail shell was screened to determine its efficiency as heterogeneous catalyst for biodiesel production via trans-esterification reaction. Prior to its use, the solid oxide material (shell) was calcined at 800°C for 4 h to convert CaCO3 to CaO. Physicochemical analysis of waste cooking oil reveals the acid value (3.47 mg KOH/gm), density (0.9 g/cm3), moisture content (0.1%) and kinematic viscosity (42.2) respectively. The prepared solid oxide catalyst was characterized using X-ray Fluorescence (XRF) and Fourier Transform Infrared Spectroscopy (FT-IR) methods. The catalytic activity of the catalyst was evaluated by the transesterification reaction under the following reaction conditions: temperature (60°C), time (3 h) and methanol to oil ratio (9:1) respectively. GC-MS analysis was used to characterize the fatty acid methyl ester composition. The research signified successful application of waste snail shell as heterogeneous catalyst for prospective economic preparation of ...

Briquettes samples were manually produced using a hydraulic press from rice husk using starch and... more Briquettes samples were manually produced using a hydraulic press from rice husk using starch and gum Arabic resin as binders. The proximate analysis of the samples reveals that the briquette produced using starch binder has the moisture value (9.26±0.251), Ash (16.29±0.172), Volatile matter (64.17±0.306), and fixed carbon content of (9.55±0.502) respectively whereas the gum Arabic bonded briquette has the moisture value (10.68±0.214), Ash (19.89±0.775), Volatile matter (60.84±0.250), and fixed carbon content of (8.26±0.535) respectively. The physical characteristics of the samples shows that the starch bonded briquette has the compressive strength of (0.668± 0.012 N/mm2), density (0.68±0,028 g/cm3), ignition time (0.17±0.01 cm/s), afterglow (313±6.123 sec), and calorific value (10.35±0.135 MJ/Kg) respectively whereas the gum Arabic bonded briquette has the compressive strength of (0.559±0.031 N/mm2), density (0.575±0.031 g/cm3), ignition time (0.13±0.007 cm/s), afterglow (187±7.035...

Vegetables are major sources of vitamins, minerals and bioactive components such phytochemicals a... more Vegetables are major sources of vitamins, minerals and bioactive components such phytochemicals and antioxidant that help in reducing the risk of diseases. The aim of the study was to determine the proximate composition, phytochemical screening and mineral composition of Amaranthus spp. leaf extract. The proximate composition and phytochemical screening were determined using conventional laboratory methods while the mineral composition of the leaves was determines using atomic absorption spectrophotometer. The proximate analysis of the leaf extract showed that it contains carbohydrate (48.6%), protein (18.2%), fats (5.4%), crude fibre (10.6%), moisture content (8.3%) and ash content (13.3%). The preliminary phytochemical screening of Amaranthus spp. leaf extract revealed the presence of Alkaloid, terpenoid, flavonoids, steroid, phenol, saponins and tannin. Quantitative phytochemical analysis of the extract showed that the flavonoids is the most abundant constituent in making about 1...

Heliyon, 2017

Increase in organic waste generation, dwindling nature of global oil reserves coupled with enviro... more Increase in organic waste generation, dwindling nature of global oil reserves coupled with environmental challenges caused by waste oil disposal and burning of fossil fuels necessitated the need for alternative energy resources. Waste cooking oil obtained from the frying fish outlet was analyzed for its physicochemical properties using ASTM D-975 methods. Acid and Iodine values of the oil were 30.43 ± 0.32 mgKOH/g and 57.08 ± 0.43 mgI2/100 g respectively. Thermo-chemical conversion of the oil using NiO/SiO2 at different reaction conditions (pressure, temperature, and catalyst concentration) at a residence time of 3 h yielded 33.63% hydrocarbons. Hydro-catalytic pyrolysis of waste cooking oil at 400 °C, H2 pressure of 15 bars, and catalyst to oil ratio of 0.25 g/100 cm3 resulted in highest hydrocarbon yield (41.98%). The fuel properties of the product were: cetane number (71.16), high heating value (41.43 MJ/kg), kinematic viscosity (2.01 mm2/s), density (0.94 g/ml), saponification value (185.1 ± 3.96 mgKOH/g), and iodine value (20.57 ± 0.20 I2/100 g) respectively. These results show that the NiO/SiO2 could be a suitable catalyst for conversion of waste vegetable oil to hydrocarbons.

Journal of Pharmacy & Bioresources, 2017

Cassia sieberiana is a tropical plant, widely distributed throughout Sudan and Guinea savannah. I... more Cassia sieberiana is a tropical plant, widely distributed throughout Sudan and Guinea savannah. It is used in traditional medicine for the treatment of malarial, cancer and stomach ache. The study was conducted to screen for phytochemicals, free radical scavenging and antibacterial potentials of the root bark. It was extracted successively by Soxhlet extractor using n-hexane, dichloromethane and methanol. The phytochemical screening of the extracts revealed the presence of saponins, flavonoids, tannins, anthraquinones, phenolics, alkaloids, carbohydrates, steroids/triterpenoids and cardiac glycosides. Qualitatively screening for free radical scavenging compounds using 1,1-Diphenyl-2-PicrylHydrazyl (DPPH) was carried out on TLC. The result showed greater activity in the methanol extract. In vitro quantitative determination of free radical scavenging activity using DPPH at 2.5, 5, 10 and 20 mg/mL also showed methanol extract with highest activity (IC 50 of 0.25 mg/mL). The activity demonstrated may be due the presence of phenolic compounds. The dichloromethane and methanol extracts showed good antibacterial activity against S. aureus , B. subtilis , E. coli and P. aeruginosa . The zones of inhibition of growth produced by the dichloromethane and methanol extracts on the microorganisms at 15, 20, 25 and 30 mg/mL ranged from 2 - 20 mm. The MIC and MBC revealed that, dichloromethane and methanol extracts were both bateriostatic and bactericidal. Results obtained from this research have provided preliminary evidence for the use of C. sieberiana root bark in traditional medicine for treatment of diseases attributed to free radicals and microbial infections. Keywords: Cassia sieberiana , DPPH, Antibacterial, Phytochemical, Phenolic Content

jamilu sani, 2019

Innovative Energy & Research, 2017

The waste snail shell was screened to determine its efficiency as heterogeneous catalyst for biod... more The waste snail shell was screened to determine its efficiency as heterogeneous catalyst for biodiesel production via trans-esterification reaction. Prior to its use, the solid oxide material (shell) was calcined at 800°C for 4 h to convert CaCO 3 to CaO. Physicochemical analysis of waste cooking oil reveals the acid value (3.47 mg KOH/gm), density (0.9 g/cm 3), moisture content (0.1%) and kinematic viscosity (42.2) respectively. The prepared solid oxide catalyst was characterized using X-ray Fluorescence (XRF) and Fourier Transform Infrared Spectroscopy (FT-IR) methods. The catalytic activity of the catalyst was evaluated by the transesterification reaction under the following reaction conditions: temperature (60°C), time (3 h) and methanol to oil ratio (9:1) respectively. GC-MS analysis was used to characterize the fatty acid methyl ester composition. The research signified successful application of waste snail shell as heterogeneous catalyst for prospective economic preparation of heterogeneous catalyst. It also developed an unconditional avenue for using the waste snail shell as the catalyst.

Increase in organic waste generation, dwindling nature of global oil reserves coupled with enviro... more Increase in organic waste generation, dwindling nature of global oil reserves coupled with environmental challenges caused by waste oil disposal and burning of fossil fuels necessitated the need for alternative energy resources. Waste cooking oil obtained from the frying fish outlet was analyzed for its physicochemical properties using ASTM D-975 methods. Acid and Iodine values of the oil were 30.43 ± 0.32 mgKOH/g and 57.08 ± 0.43 mgI 2 /100 g respectively. Thermo-chemical conversion of the oil using NiO/SiO 2 at different reaction conditions (pressure, temperature, and catalyst concentration) at a residence time of 3 h yielded 33.63% hydrocarbons. Hydro-catalytic pyrolysis of waste cooking oil at 400 °C, H 2 pressure of 15 bars, and catalyst to oil ratio of 0.25 g/100 cm 3 resulted in highest hydrocarbon yield (41.98%). The fuel properties of the product were: cetane number (71.16), high heating value (41.43 MJ/kg), kinematic viscosity (2.01 mm 2 /s), density (0.94 g/ml), saponification value (185.1 ± 3.96 mgKOH/g), and iodine value (20.57 ± 0.20 I 2 /100 g) respectively. These results show that the NiO/ SiO 2 could be a suitable catalyst for conversion of waste vegetable oil to hydrocarbons.

Heliyon, 2017

Journal of Pharmacy & Bioresources, 2017

jamilu sani, 2019

Innovative Energy & Research, 2017

The waste snail shell was screened to determine its efficiency as heterogeneous catalyst for biod... more The waste snail shell was screened to determine its efficiency as heterogeneous catalyst for biodiesel production via trans-esterification reaction. Prior to its use, the solid oxide material (shell) was calcined at 800°C for 4 h to convert CaCO 3 to CaO. Physicochemical analysis of waste cooking oil reveals the acid value (3.47 mg KOH/gm), density (0.9 g/cm 3), moisture content (0.1%) and kinematic viscosity (42.2) respectively. The prepared solid oxide catalyst was characterized using X-ray Fluorescence (XRF) and Fourier Transform Infrared Spectroscopy (FT-IR) methods. The catalytic activity of the catalyst was evaluated by the transesterification reaction under the following reaction conditions: temperature (60°C), time (3 h) and methanol to oil ratio (9:1) respectively. GC-MS analysis was used to characterize the fatty acid methyl ester composition. The research signified successful application of waste snail shell as heterogeneous catalyst for prospective economic preparation of heterogeneous catalyst. It also developed an unconditional avenue for using the waste snail shell as the catalyst.

Increase in organic waste generation, dwindling nature of global oil reserves coupled with enviro... more Increase in organic waste generation, dwindling nature of global oil reserves coupled with environmental challenges caused by waste oil disposal and burning of fossil fuels necessitated the need for alternative energy resources. Waste cooking oil obtained from the frying fish outlet was analyzed for its physicochemical properties using ASTM D-975 methods. Acid and Iodine values of the oil were 30.43 ± 0.32 mgKOH/g and 57.08 ± 0.43 mgI 2 /100 g respectively. Thermo-chemical conversion of the oil using NiO/SiO 2 at different reaction conditions (pressure, temperature, and catalyst concentration) at a residence time of 3 h yielded 33.63% hydrocarbons. Hydro-catalytic pyrolysis of waste cooking oil at 400 °C, H 2 pressure of 15 bars, and catalyst to oil ratio of 0.25 g/100 cm 3 resulted in highest hydrocarbon yield (41.98%). The fuel properties of the product were: cetane number (71.16), high heating value (41.43 MJ/kg), kinematic viscosity (2.01 mm 2 /s), density (0.94 g/ml), saponification value (185.1 ± 3.96 mgKOH/g), and iodine value (20.57 ± 0.20 I 2 /100 g) respectively. These results show that the NiO/ SiO 2 could be a suitable catalyst for conversion of waste vegetable oil to hydrocarbons.