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Topic Review
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Topic Review
Taro Mucilage
Taro (Colocasia esculenta) is an important source of carbohydrates as an energy source and is used as a staple food throughout the world. It is rich in mucilage and starch granules, making it a highly digestible ingredient. Mucilage can act as a matrix and a thickening, binding, emulsifying, or foaming agent in food, pharmaceutical, and several other fields of research. Moreover, mucilage can be extracted from several living organisms and has excellent functional properties, such as water-holding, oil-holding, and swelling capacities. Therefore, these remarkable functional properties make mucilage a promising ingredient with possible industrial applications. Furthermore, several extraction techniques, including enzyme-assisted, ultrasonication, microwave-assisted, aquatic, and solvent extraction methods, are used to obtain quantitative amounts of taro mucilage. Coldwater extraction with ethanol precipitation can be considered an effective and cost-effective technique to obtain high-quality mucilage with suitable industrial applications, whereas the ultrasonication method is more expensive but results in a higher amount of mucilage than other emerging techniques. Mucilage can also be used as a fat replacer or reducer, dye remover, coating agent, and antioxidating agent
1.7K
25 Mar 2022
Topic Review
Agrivoltaic Systems Design
An agrivoltaic system is a complex system, being, at least, a spatial, an energy and an agronomic system. Its design and assessment must adhere to requirements set depending on the project’s needs in order to meet desired performance quality objectives. Different dimensions of performance need to be taken into account.
1.7K
18 Nov 2021
Topic Review
Palm Oil Background
Palm oil plantations cover millions of hectares worldwide, which encompass a significant portion of global trade. Palm oil trees, or Arecaceae, are a genus of stemless, tree-like monocot plants that thrive in the tropics and are extremely valuable to humans and the ecosystem. The African oil palm, or Elaeis guineensis, is the most prominent palm species native to West Africa, cultivated for its oil-rich fruit as a semiwild food source for over 7000 years. The tree produces a profusion of fruit bunches yearly with each containing between 1000 and 3000 fruits.
1.7K
14 Jul 2022
Topic Review
The Flavonoid Biosynthesis Network in Plants
Flavonoids have long been a major focus of research into secondary metabolism. We present a systematic summary of what is known of the flavonoid biosynthetic pathway in plants, presenting a model of flavonoid biosynthesis that includes eight branches (stilbene, aurone, flavone, isoflavone, flavonol, phlobaphene, proanthocyanidin, and anthocyanin biosynthesis) and four important intermediate metabolites (chalcone, flavanone, dihydroflavonol, and leucoanthocyanidin).
1.7K
23 Dec 2021
Topic Review
Legume Use in Extrusion Cooking
The traditional perception that legumes would not be suitable for extrusion cooking is now completely outdated. In the recent years an increasing number of researches have been conducted to assess the behavior of various types of legume flours in extrusion cooking, proving that legumes have excellent potential for the production of extruded ready-to-eat foods by partially or totally replacing cereals. There are optimal processing conditions for legume-based and legume-added extruded foods, which allow to improve the expansion ratio and give the extrudates the spongy and crisp structure expected by consumers. The extrusion cooking process has also a positive effect on the nutritional characteristics of legumes, because induces important modifications on starch and proteins, enhancing their digestibility, and reduces the content of trypsin inhibitors, lectins, phytic acid, and tannins. Therefore, the extrusion of legume flours is a viable strategy to improve their nutritional features while reducing home preparation time, so as to increase the consumption of these sustainable crops.
1.7K
27 Oct 2020
Topic Review
PD-1/PD-L1 antibody plus Anti-VEGF Inhibitors
A successful phase III trial for the combination of atezolizumab and bevacizumab (the IMbrave150 trial) in advanced hepatocellular carcinoma has recently been reported to show better survival benefit over sorafenib, standard of care for more than 12 years. This is a practice changing results and scientific rationale of this combination, PD-1/PD-L1 antibody plus anti-VEGF inhibitors is very important.
1.7K
18 Dec 2020
Topic Review
Enzymatic Activity
Enzymatic Activity is a sensitive indicator of changes in soil environment, and it changes depending on the farming system.
1.7K
30 Oct 2020
Topic Review
Fish Exposed to Ammonia Nitrogen
Ammonia nitrogen is the major oxygen-consuming pollutant in aquatic environments. Exposure to ammonia nitrogen in the aquatic environment can lead to bioaccumulation in fish, and the ammonia nitrogen concentration is the main determinant of accumulation. In most aquatic environments, fish are at the top of the food chain and are most vulnerable to the toxic effects of high levels of ammonia nitrogen exposure. In fish exposed to toxicants, ammonia-induced toxicity is mainly caused by bioaccumulation in certain tissues. Ammonia nitrogen absorbed in the fish enters the circulatory system and affects hematological properties. Ammonia nitrogen also breaks balance in antioxidant capacity and causes oxidative damage. In addition, ammonia nitrogen affects the immune response and causes neurotoxicity because of the physical and chemical toxicity.
1.7K
23 Nov 2021
Topic Review
Waterlogging Impacts on Crop Growth
Waterlogging has the greatest impact on photosynthesis, followed by phenology and leaf expansion, suggesting a need for improved equations linking waterlogging to carbon assimilation. In agricultural fields, soil waterlogging can occur for many reasons. These may include excessive rainfall or irrigation, poor soil drainage, rising or perched water tables, as well as lateral surface or subsurface flows. This may lead to reduced oxygen within soil pores, causing reduced growth and, sometimes, crop death.
1.7K
06 Sep 2022
Topic Review
Wheat Gluten and Gluten-Free Alternatives
Gluten is the nitrogen storage protein matrix found in wheat and cereals belonging to the Triticeae tribe, and it is composed of two proteins: gliadin and glutenin.
1.6K
28 Jan 2021
Topic Review
Apocarotenoids
Carotenoid-derived apocarotenoids (CDCs) are formed by the oxidative cleavage of carbon–carbon double bonds in the carotenoid backbones either by carotenoid cleavage enzymes (CCDs) or via the exposure of carotenoids to ROS. Many of these apocarotenoids play key regulatory roles in plant development as growth simulators and inhibitors, signalling molecules, including as abscisic acid and strigolactones, and have roles in plant defence against pathogens and herbivores. Others act as flavour and aroma compounds in fruit pericarp, flowers and seeds. The diverse variety of carotenoids (+700) means that the potential apocarotenoid products represent a significant number of natural compounds.
1.6K
03 Nov 2021
Topic Review
Rangelands Livestock Production Systems
Rangelands as referred to herein can be defined as uncultivated lands that provide multiple ecosystem services for society, sustain habitat for grazing and browsing animals, and support the livelihoods of pastoralists and ranchers [1][2]. Under this definition rangelands comprise up to 70% of the world’s land area and include natural grasslands, deserts, temperate forests, and tropical forests [1]. Greenhouse gases (GHGs) released into the lower atmosphere mainly by the burning of fossil fuels and other anthropogenic activities have caused the earth’s temperature to rise by 1 °C since the 1860s [3][4]. If GHG emissions continue to rise, an increase in global temperature up to 3 to 5 °C is projected by the end of this century [4]. Extreme weather events are already increasing in frequency and severity in the US and globally [3][4][5]. Global concern is growing over the possibility that eventual irreversible, catastrophic climate change will result in massive loss of human livelihoods and mortality through adverse impacts on food production systems over both croplands and rangelands [3][4][6][7][8][9][10][11][12].
1.6K
05 Nov 2020
Topic Review
Arthropoda
Arthropods (/ˈɑːrθrəpɒd/, from grc ἄρθρον (arthron) 'joint', and πούς (pous) 'foot' (gen. ποδός)) are invertebrate animals having an exoskeleton, a segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and cuticle made of chitin, often mineralised with calcium carbonate. The arthropod body plan consists of segments, each with a pair of appendages. Arthropods are bilaterally symmetrical and their body possesses an external skeleton. In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. Some species have wings. They are an extremely diverse group, with up to 10 million species. The haemocoel, an arthropod's internal cavity, through which its haemolymph – analogue of blood – circulates, accommodates its interior organs; it has an open circulatory system. Like their exteriors, the internal organs of arthropods are generally built of repeated segments. Their nervous system is "ladder-like", with paired ventral nerve cords running through all segments and forming paired ganglia in each segment. Their heads are formed by fusion of varying numbers of segments, and their brains are formed by fusion of the ganglia of these segments and encircle the esophagus. The respiratory and excretory systems of arthropods vary, depending as much on their environment as on the subphylum to which they belong. Arthropods use combinations of compound eyes and pigment-pit ocelli for vision. In most species, the ocelli can only detect the direction from which light is coming, and the compound eyes are the main source of information, but the main eyes of spiders are ocelli that can form images and, in a few cases, can swivel to track prey. Arthropods also have a wide range of chemical and mechanical sensors, mostly based on modifications of the many bristles known as setae that project through their cuticles. Similarly, their reproduction and development are varied; all terrestrial species use internal fertilization, but this is sometimes by indirect transfer of the sperm via an appendage or the ground, rather than by direct injection. Aquatic species use either internal or external fertilization. Almost all arthropods lay eggs, but many species give birth to live young after the eggs have hatched inside the mother, and a few are genuinely viviparous, such as aphids. Arthropod hatchlings vary from miniature adults to grubs and caterpillars that lack jointed limbs and eventually undergo a total metamorphosis to produce the adult form. The level of maternal care for hatchlings varies from nonexistent to the prolonged care provided by social insects. The evolutionary ancestry of arthropods dates back to the Cambrian period. The group is generally regarded as monophyletic, and many analyses support the placement of arthropods with cycloneuralians (or their constituent clades) in a superphylum Ecdysozoa. Overall, however, the basal relationships of animals are not yet well resolved. Likewise, the relationships between various arthropod groups are still actively debated. Today, Arthropods contribute to the human food supply both directly as food, and more importantly, indirectly as pollinators of crops. Some species are known to spread severe disease to humans, livestock, and crops.
1.6K
10 Nov 2022
Topic Review
Argiudolls of the Argentina
Argiudolls are a Great group of Mollisols, which are key components in the provision of ecosystem services associated with global food production. These soils act as support for different anthropic activities and are involved in the regulation of water quality and quantity, nutrient recycling, carbon reserve and maintenance of biodiversity.
1.6K
12 Jan 2021
Topic Review
Milk Bioactive Compounds
The milk fat fraction is a rich source of nutrients and bioactive factors. This fraction is composed of milk fat globules (MFGs) surrounded by the milk fat globule membrane (MFGM). In this review we revise the literature that deals two minor topics that characterize the milk fat fraction. The first topic is the MFGM proteome, which has several bioactive properties and shows similarities and variations among species and phases of lactation. The second topic is the content of essential nutrients among MFGs and MFGM, named minerals and lipophilic vitamins, in order to assess the nutrifunctional role of the milk fat fraction.
1.6K
29 Apr 2021
Topic Review
Fruit breeding : pomegranate
Many fruit trees have been whole-genome sequenced, and these genomic resources provide us with valuable resources of genes related to interesting fruit traits (e.g., fruit color, size and taste) and help to facilitate the breeding progress. Pomegranate (Punica granatum L.), one economically important fruit crop, has attracted much attention for its multiple colors, sweet and sour taste, soft seed and nutraceutical properties. In recent years, the phylogenesis of pomegranate has been revised which belongs to Lythraceae. So far, three published pomegranate genomes including ‘Taishanhong’, ‘Tunisia’ and ‘Dabenzi’ have been released on NCBI with open availability. This article analyzed and compared the assembly and annotation of three published pomegranate genomes. We also analyzed the evolution-development of anthocyanin biosynthesis and discussed pomegranate population genetics for soft seed breeding. These provided some references for horticultural crop breeding on the basis of genomic resources, especially pomegranate.
1.6K
21 Jul 2020
Topic Review
Strategies to Cope with Late Wilt of Maize
Zea mays L. (maize, corn) is one of the world’s leading crops for food, feed, and fuel and as a raw material for different industrial products. Control of maize late wilt disease (LWD) has been at the forefront of research efforts since the discovery of the disease in the 1960s. The disease has become a major economic restraint in highly affected areas such as Egypt and Israel and is of constant concern in other counties. LWD causes dehydration and collapsing at a late stage of maize cultivation, starting from the male flowering phase. The disease causal agent, Magnaporthiopsis maydis, is a seed- and soil-borne phytoparasitic fungus, penetrating the roots at sprouting, colonizing the vascular system without aboveground symptoms, and spreading upwards in the xylem, eventually blocking the water supply to the plant’s upperparts. Nowadays, the disease’s control relies mostly on identifying and developing resistant maize cultivars. Still, host resistance can be limited because M. maydis undergoes pathogenic variations, and virulent strains can eventually overcome the host immunity. This alarming situation is driving researchers to continue to seek other control methods. The current entry will summarize the various strategies tested over the years to minimize the disease damage. These options include agricultural (crop rotation, cover crop, no-till, flooding the land before sowing, and balanced soil fertility), physical (solar heating), allelochemical, biological, and chemical interventions. Some of these methods have shown promising success, while others have contributed to our understanding of the disease development and the environmental and host-related factors that have shaped its outcome. The most updated global knowledge about LWD control will be presented, and knowledge gaps and future aims will be discussed.
1.6K
10 Jan 2022
Topic Review
Wearable Optical Sensor
Miniaturization advances have led to several wearable sensors that are now being employed in a variety of biomedical applications. Some of these have been ingrained in people’s daily lives. Smart bands and smartwatches with pulse monitors, pulse oximeters, accelerometers, gyroscopes, and other sensors are one example.
1.6K
28 Jan 2022
Topic Review
Chitosan Biopolymer on Plant Growth
The chitosan (CHT) biopolymer is a de-acetylated chitin derivative derived from the outer shell of shrimp, shellfish, lobster, or crabs, as well as the cell wall of fungi. Because of its biodegradability, environmental non-toxicity, and biocompatibility, it is an ideal resource for sustainable agriculture. The CHT emerged as a promising agent used as a plant growth promoter. It induces plant growth by influencing plant physiological processes like nutrient uptake, cell division, cell elongation, enzymatic activation, and synthesis of protein that can eventually lead to increased yield. It also alters plant defense responses by triggering multiple useful metabolic pathways. Depending on the structures, chitosan is useful for industrial and agricultural applications.
1.6K
21 Dec 2020
Topic Review
Turtles in Malaysia
Approximately 356 species of turtles inhabit saltwater and freshwater habitats globally, except in Antarctica. Twenty-four species of turtles have been reported in Malaysia, four of which are sea turtles. The state of Terengganu harbored the highest number of turtles, with 17 different reported species.
1.6K
19 Sep 2022
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