Mohammad NadimiUniversity of Manitoba | UMN · Department of Biosystems Engineering
Mohammad Nadimi
PhD
Biosystems Eng.
*Senior Editor Meas. Food; G. Editor Sustainability; G. Editor Foods; Open to collaboration
About
64
Publications
15,184
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Introduction
Dr. Mohammad Nadimi received a Ph.D. in Electrical Eng. from the Faculty of Eng. of the University of Manitoba (U of M), Canada, in 2018. He is currently a researcher in the Faculty of Agricultural and Food Sciences at the U of M, collaborating with industrial partners on developing smart grain quality monitoring techniques.
Dr. Nadimi is currently serving as an Associate Editor of Elsevier journal of Measurement Food, a Guest Editor of Sustainability journal and a Guest Editor of Foods journal.
Skills and Expertise
Education
September 2012 - August 2018
Publications
Publications (64)
One of the challenges in the drying process is decreasing the drying time while preserving the product quality. This work aimed to assess the impact of pulsed electric field (PEF) treatment with varying specific energy levels (15.2–26.8 kJ/kg) in conjunction with a microwave vacuum dryer (operating at energy levels of 100, 200 and 300 W) on the kin...
With the ever-increasing global population, food demand will continue to increase in the coming decades [...]
Drying is a crucial unit operation within the functional foods and biopharmaceutical industries, acting as a fundamental preservation technique and a mechanism to maintain these products' bioactive components and nutritional values. The heat-sensitive bioactive components, which carry critical quality attributes, necessitate a meticulous selection...
Near-infrared (NIR) dyes have a unique ability to interact favorably with light in the NIR region, which is particularly interesting where stealth and camouflage are paramount, such as in military uniforms. Characterization of cotton fabric dyed with NIR-absorbing dyes using visible-NIR (Vis-NIR) and short-wave infrared (SWIR) hyperspectral imaging...
Driven by the food industry’s need for balanced and versatile flour ingredients, the shift towards replacing starch-rich cereal flour with protein-rich pulse alternatives is gaining popularity among millers. This trend aligns well with the increasing consumer interest in nutritional value, product quality, and environmentally sustainable protein al...
Cereal grains and oilseeds, fundamental components of global diets, face significant vulnerability to mechanical damage during various stages, including harvesting, transportation, and storage. Beyond immediate physical degradation, the repercussions of such damage extend to seed viability and consequent economic implications. Traditional assessmen...
The high demand for flax as a nutritious edible oil source combined with increasingly restrictive import regulations for oilseeds mandates the exploration of novel quantity and quality assessment methods. One pervasive issue that compromises the viability of flaxseeds is the mechanical damage to the seeds during harvest and post-harvest handling. C...
This study explored the potential of a novel gas-assisted high-moisture extrusion cooking technique to improve the physical quality of meat analogues. Extrusion was performed as a full factorial design at three long cooling die temperatures (DT) (35, 50 and 65 °C) and three nitrogen gas injection pressures (GP) (0, 1 and 2.5 bar). The lowest meat a...
Facing severe climate change, preserving the environment, and promoting sustainable development necessitate innovative global solutions such as waste recycling, extracting value-added by-products, and transitioning from traditional to renewable energy sources. Accordingly, this study aims to repurpose fish waste into valuable, nutritionally rich pr...
Adding value to food industry by-products, like sunflower meal (SFM), through their utilization as ingredients in new food products can improve sustainability of food systems. This research investigated extrusion cooking to produce high-moisture meat analogues (HMMAs) made from blends of soy protein isolate and expeller-pressed SFM. The effects of...
With the continuously growing world population in the 21st century, the agri-food industry is in dire need of adopting rapid, eco-friendly, and reliable technologies to improve the quantity, quality, and safety of agri-food products to fulfill the world's future food needs. Hyperspectral imaging (HSI), a technique to glean a sample's spectral and s...
This study proposes a hybrid gene selection method to identify and predict key genes in Arabidopsis associated with various stresses (including salt, heat, cold, high-light, and flagellin), aiming to enhance crop tolerance. An open-source microarray dataset (GSE41935) comprising 207 samples and 30,380 genes was analyzed using several machine learni...
The bean weevil, Acanthoscelides obtectus, is one of the most destructive insect pests of stored pulses globally. Cold treatment is a method used for controlling many insect species that are pests of stored-products. To understand if cold treatment can be used to control A. obtectus, we evaluated its cold tolerance at −5 °C and its supercooling poi...
Non-destructive assessment of fruits for grading and quality determination is essential to automate pre-and post-harvest handling. Near-infrared (NIR) hyperspectral imaging (HSI) has already established itself as a powerful tool for characterizing the quality parameters of various fruits, including apples. The adoption of HSI is expected to grow ex...
Lemons are a popular citrus fruit known for their medicinal and nutritional properties. However, fresh lemons are vulnerable to mechanical damage during transportation, with bruising being a common issue. Bruising reduces the fruit's shelf life and increases the risk of bacterial and fungal contamination, leading to economic losses. Furthermore, di...
Corn is a staple food crop grown in over 100 countries worldwide. To meet the growing demand for corn, losses in its quality and quantity should be minimized. One of the potential threats to the quality and viability of corn is mechanical damage during harvesting and handling. Despite extensive research on corn, there is a lack of reliable data on...
The metabolic actions of storage fungi and other microorganisms can cause spoilage and post-harvest losses in agricultural commodities, including flaxseed. These microbial contaminants are oxidized with hydroxyl radicals that are efficiently generated when ozone, hydrogen peroxide (H2O2) and ultraviolet (UV) light react in an advanced oxidative pro...
With the growing global population, the need for food is expected to grow tremendously in the next few decades. One of the key tools to address such growing food demand is minimizing grain losses and optimizing food processing operations. Hence, several research studies are underway to reduce grain losses/degradation at the farm (upon harvest) and...
Drying is one of the common techniques for preserving agri-food product quality. However, for each product, the appropriate drying parameters should be identified to optimize drying quality and energy consumption. The present work aims to explore the performance of a hot air dryer (HAD) to dry cantaloupe (Cucurbita maxima) slices at three temperatu...
The metabolic actions of storage fungi and other microorganisms can cause spoilage and post-harvest losses in agricultural commodities, including flaxseed. These microbial contaminants are oxidized with hydroxyl radicals that are efficiently generated when ozone, hydrogen peroxide (H 2 O 2 ), and ultraviolet (UV) light react in an advanced oxidativ...
Manual harvesting of coconuts is a highly risky and skill-demanding operation, and the population of people involved in coconut tree climbing has been steadily decreasing. Hence, with the evolution of tree-climbing robots and robotic end-effectors, the development of autonomous coconut harvesters with the help of machine vision technologies is of g...
The growing demand for flaxseed as a source of healthy edible oil mandates the need for adopting novel strategies for preserving its quantity and quality. Mechanical damage during harvest and handling is one of the important threats that can adversely affect the quality and viability of flaxseeds. Currently, mechanical damage assessment in grains i...
Over the past decade, the fresh white mulberry (Morus alba L.) fruit has gained growing
interest due to its superior health and nutritional characteristics. While white mulberry is consumed as fresh fruit in several countries, it is also popular in dried form as a healthy snack food. One of the main challenges that have prevented a wider consumer u...
Applications of deep-learning models in machine visions for crop/weed identification
have remarkably upgraded the authenticity of precise weed management. However, compelling data are required to obtain the desired result from this highly data-driven operation. This study aims to curtail the effort needed to prepare very large image datasets by cre...
We report on continuous-wave Nd:YAP laser with in-band diode pumping around 910 nm. The laser produced an average output power of 1.15 W at 1079 nm.
Sub-optimal storage of grains could deteriorate seed germination and plant viability. Recent research studies have established that laser biostimulation of seeds could be used as a safe and sustainable alternative to chemical treatment for improving crop germination and growth. Herein, the efficacy of this novel technique is evaluated to see if poo...
Rapid, non-destructive, and smart assessment of the maturity levels of fruit facilitates their harvesting and handling operations throughout the supply chain. Recent studies have introduced machine vision systems as a promising candidate for non-destructive evaluations of the ripeness levels of various agricultural and forest products. However, the...
Increasing consumer interest in pulse flour-based food formulations has highlighted the importance of flour characterization based on the type (variety) of pulse and milling methods. The objective of the present study was to compare the microstructure of four different pulse flours (chickpea, navy bean, green lentil, and yellow pea) obtained from t...
Nondestructive estimation of physicochemical properties, post-harvest physiology, and level of ripeness of fruits is essential to their automated harvesting, sorting, and handling. Recent research efforts have identified machine vision systems as a promising noninvasive nondestructive tool for exploring the relationship between physicochemical and...
Background and objectives
Most puffed snacks in the market are made from refined cereal flours which allow greater expansion and better texture but are nutritionally inferior as they lack protein and dietary fiber. Whole barley and green lentil flours at several blending ratios were extruded as a function of temperature and moisture content to opti...
Fusarium spp. and Ergot (Claviceps purpurea) are fungal pathogenic species that infect cereals worldwide, causing widespread economic losses. Fusarium-damaged kernels (FDKs) in wheat often contain harmful mycotoxins, while Ergot damage (ERG) is commonly characterized by the presence of alkaloids. Both FDK and ERG damage could cause health hazards t...
The emergence of flax as a nutritional superfood has brought to the forefront the challenges its producers face in the crop's post-harvest quality preservation. Mechanical damage during harvesting, handling, and transportation can severely impair flaxseed quality causing economic losses to producers and processors. Therefore, this study explored th...
Highlights
The effect of laser biostimulation on wheat germination was explored using a single- and dual-wavelength (DW) laser.
An 80 mW green-infrared DW laser treatment significantly enhanced several germination traits of wheat.
The effect of a 100 mW single-wavelength red laser on wheat germination was non-significant.
Abstract. Laser biostimul...
The agriculture industry experiences severe economic losses each year due to infection of cereal crops with Fusarium, often leading to contamination with the secondary metabolite mycotoxin Deoxynivalenol (DON). Timely detection of Fusarium Damaged Kernels (FDK) could provide producers with an opportunity to develop and implement mitigation strategi...
With ever increasing world population, the demands on food safety and security are also expected to substantially increase over the next few decades. As agronomic practices, agricultural mechanization and plant breeding technologies have already been extensively exploited, novel techniques need to be explored and implemented to enhance crop product...
Controllable continuous-wave dual-wavelength laser operation of a Nd:GdVO4/Nd:YVO4 composite crystal at 1063 and 1064 nm was demonstrated using in-band diode pumping around 912 nm. The spectral power ratio of the two laser wavelengths could be adjusted simply by controlling the pump wavelength of the laser diode via temperature. The laser produced...
We report on what we believe is the first continuous-wave yttrium lithium fluoride laser with in-band diode pumping at 908 nm. Pumping at this wavelength reduced the quantum defect by more than 50% when compared to the conventional pumping at ~800 nm. The laser produced an output power of 850 mW at 1047 nm and its radiation was -polarized. It had a...
We have demonstrated the highest conical refraction (CR) laser output power to date by placing a CR crystal inside of a diode-pumped Nd:YVO laser cavity. The CR crystal did not have a significant influence on laser output power as well as efficiency. The CR laser produced the maximum output power of 3.68 W with the slope efficiency of 42 % and opti...
We have demonstrated what we believe is the first report on the three continuous-wave dual-wavelength operation regimes of a diode-pumped Nd:GdVO4 laser using a single birefringent filter plate. The dual-wavelength operation was achieved at the 1063 & 1071 nm, 1063 & 1083 nm and 1083 & 1086 nm by changing the rotation angle of the birefringent filt...
We report on the thermal lensing effect study in a 1063-nm Nd:GdVO4 laser with in-band diode pumping at 912 nm. The thermal lensing focal power was determined using the experimentally measured values of the laser beam width and beam quality factor (M²). The maximum observed thermal lens dioptric power was 9 m⁻¹ at 11.3 W of output power (18.87 W of...
Discrete multi-wavelength operation of a diode-pumped Nd:GdVO4 laser at four different wavelengths was demonstrated using a single birefringent filter plate. The laser achieved maximum output powers of 5.92 W, 5.66 W, 5.56 W and 3.98 W at 1063.2 nm, 1070.8 nm, 1082.5 nm and 1086.2 nm wavelengths, respectively. To the best of our knowledge, apart fr...
We report on the first semiconductor saturable absorber mirror mode-locked Nd:GdVO4 laser directly diode-pumped at 912 nm. The laser generated 10.14 W of averaged output power at 1063 nm with the pulse width of 16 ps at the repetition rate of 85.2 MHz. The optical-to-optical efficiency and slope efficiency in the mode-locked regime were calculated...
We report on the performance of a continuous-wave Nd:GdVO4 laser in-band diode-pumped at 912 nm with high output power and excellent beam quality. The laser produced an output power of 19.8Wat 1063 nm with an optical efficiency of 59.3% and slope efficiency of 62.7%. The laser threshold was ∼2.04 W of the absorbed pump power, and the laser output b...
High operating temperatures infrared photodetectors are needed for improving the performance of existing military and civilian infrared systems. To obtain high device performance at higher temperatures, the thermally generated noise required to be reduced. Minority-carrier extraction and exclusion techniques are the approaches for decreasing the th...
High operating temperatures infrared photodetectors are needed for improving the performance of these systems. To obtain high device performance at higher temperatures, the thermally generated noise required to be reduced. Minority-carrier extraction and exclusion techniques are the approaches for decreasing the thermal noise of infrared systems. I...
Questions
Questions (4)
Out of the 7.7 billion world population in 2020, more than 800 million people were undernourished, and more than 50 million were suffering from urgent food hunger. Over the next three decades, the world population is expected to grow by 25%, which mandates the need to adopt novel strategies to feed the world. From your point of view, what individual actions and/or novel research work may provide a solution to the aforementioned worldwide challenge?
Several MDPI-published papers provide higher FWCI than the well-known Elsevier counterparts. Which one gains more credit in the scientific community? Please share your thought.
We recently published a review paper on recent applications of novel laser techniques for enhancing agricultural production
with the focus on laser biostimulation, light detection and ranging (LIDAR), laser land levelling, laser-induced fluorescence spectroscopy, and Raman spectroscopy.
Please let us know if you have interests in any other emerging applications of lasers in mind, as we may draft part 2 of this manuscript soon.
Regards,
Mohammad Nadimi
