food storage
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2022 ◽  
pp. 123-150
Author(s):  
Suzita Ramli ◽  
Jun Xian Wong

Transmission of hazardous materials could be aggravated by inappropriate handling and storage practices. This results in cross-contamination to foodstuff or cooking utensils. The introduced hazards in the food supply chain might lead to client and reputation loss. The implementation of food safety is necessary to secure safety concerns. All employees should take initiative to be aware and have good attitudes regarding proper hygiene and sanitary practices to assure their product integrity and safety for human consumption. Therefore, this chapter delivered the appropriate and standard food safety protocols to all individuals involved in food storage, preparation, and serving. The scope was structured into (1) identification of hazardous ingredients, (2) purchasing and receiving raw materials, (3) transporting and storage, (4) cooking and reheating, (5) food serving and displaying, (6) leftover storage, and (7) cleaning and sanitation.


Insects ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 26
Author(s):  
Lei Nie ◽  
Fei Zhao ◽  
Yiming Chen ◽  
Qian Xiao ◽  
Zhiping Pan ◽  
...  

The paralysis behavior of some ponerine ants when foraging may be important for food storage and colony development. However, how workers invest in paralysis under different prey circumstances is often overlooked. Here, we report the prey-foraging behavior and paralysis behavior of Harpegnathos venator under different food supply conditions. Solitary hunting was the main foraging mode of H. venator, with occasional simple collective hunting. Nymphal cockroaches with high activity were the most attractive to H. venator. In the experiment, we found that the stings of H. venator completely paralyzed the cockroaches. The stinging time was significantly longer at a higher prey activity level and for larger cockroaches. In addition, there was no significant difference in the stinging time of H. venator for different prey densities. The results showed that the longer similar cockroaches were stung, the longer it took for them to revive and move. These results are helpful for further understanding the behavioral mechanism underlying the food storage of live prey by predatory insects.


Author(s):  
O.M. Anoshko

This article continues a series of papers dedicated to introducing in the scientific discourse materials ob-tained during archaeological investigations of the cultural layer of Tobolsk — the main city of Siberia during the Russian colonization. In the course of investigation of the First and Second Gostiny dig sites, laid at the walls of Gostiny Dvor, there were recorded 24 structures of residential and economic purposes, dated to the period from the 17th to the 19th centuries on the basis of planigraphic and stratigraphic analyses and finds. The residential timber structures were single-storeyed, with saddle notch type corners (“v oblo”) with tails. Beside the houses, there were root cellars. A representative collection of finds is related to the houses: animal bones; breakage of stoneware, chinaware, and glassware; fragments of terracotta, enameled, and polychrome tile, as well as objects made of bone, leather, bark, and wood, mainly dated to the 17th — beginning of the 19th century. The most common mate-rial, amounted to several thousand items, was represented by pottery shards — pots, ewers, jars, and pans, which were used for food cooking, food storage, as well as for other everyday purposes. The porcelain ware is associated with the tea ceremony and is mainly represented by fragments of saucers, and sometimes those of drinking cups, bowls, and teapots. By the provenance, two groups of the porcelain have been identified — Chi-nese and Russian, with characteristic makers marks and patterns. The collection of iron items consists of knives, bridle bits, door hinges, latches, nails, hooks, and fragments of scissors. The leather footwear is represented by one-piece leather-hide shoes, high boots, and shoes with iron heeltaps. Another category of the finds is represented by bone combs, which were ordinarily used not only by women, but also by men. The numismatic collection com-prises 36 Russian coins and a counter pfennig struck in the workshop of Johann Adam Dietzel (master 1746–1768) in Nuremberg. The copper articles are represented by five baptismal cross pendants and by a find unique for the Siberian region — a gilded panhagia of a copper alloy with a sliding finial, several liturgical inscriptions, and images, including those of the Crucifixion, the Holy Trinity of the Old Testament, and the Mother of God of the Sign. In ge-neral, the archaeological materials of the digs show that this quarter of the uptown of Tobolsk was part of the resi-dential and commercial housing of the town, while its residents had a relatively high level of material wellbeing.


Author(s):  
Mohammed Abdul Baseer ◽  
Khusroo Ahmed Ansari ◽  
Anant A. Takalkar

Background: ICDS scheme represents one of the largest programmes, which is a symbol of India’s commitment to its children, providing pre-school education on one hand and breaking the today vicious cycle of malnutrition, morbidity, reduced learning capacity and mortality on the other hand.Methods: The present study was taken up to assess the infrastructure and services of anganwadi centers. Community based cross sectional observational study was conducted by involving 92 anganwadi centers in Kalaburagi city.Results: Out of 92 AWCs studied, 52 (56.5%) were belonged to Government set up whereas 40 i.e.; 43.5% were on rental basis. Safe drinking water was available in 81 i.e.; 88% of AWCs, toilet facility was available in 34 i.e.; 37% of AWCs. Adequate outdoor space was available in 54 i.e.; 58.7% of AWCs. Adequate indoor space was available in 72 i.e.; 78.3% of AWCs. Adequate kitchen space was available in 65 i.e.; 70.7% of AWCs. Adequate food storage facility was available in 70 i.e.; 76.1% of AWCs and in 22 i.e.; 23.9% it was not adequate. In 30 i.e.; 32.6% of AWCs, source of fuel use was LPG.Conclusions: Safe drinking water was available in majority of AWCs. Almost one third of anganwadi have inadequate space. Majority of anganwadi have maintained sufficient number of registers. Outdoor and indoor game kits and equipment’s were available at majority of AWCs.


2021 ◽  
Vol 6 (3) ◽  
pp. 50-58
Author(s):  
Hari Purnomo ◽  
Arya Yudhistira

29 Million elderly had accidents during 2014, and caused 29 thousand of death in 2016.  Once of the biggest potential risk for elderly is a kitchen. It caused nursing home, needs to be more consent in designing kitchen for elderly. The purpose of this research was to design comfort kitchen for elderly by using design thinking approach. Design thinking utilized voice of customer to made a decision. It has an excessed as prototype redundant test to gain the voice of customers. Based on the customer needs, this research designed a kitchen with some racks near the dishwasher, applied some handrails in several places, sitting place to wash the dish and to cook, applied a food storage. Kitchen designed without any stairs and create a storage to placing the walker. This proposed design was tested by Wilcoxon signed-rank test to prove the differences the new design with the precedence design


2021 ◽  
Vol 11 (24) ◽  
pp. 11937
Author(s):  
Eliconda Antaby ◽  
Kristina Klinkhammer ◽  
Lilia Sabantina

Chitosan is a natural biopolymer that can be suitable for a wide range of applications due to its biocompatibility, rigid structure, and biodegradability. Moreover, it has been proven to have an antibacterial effect against several bacteria strains by incorporating the advantages of the electrospinning technique, with which tailored nanofibrous scaffolds can be produced. A literature search is conducted in this review regarding the antibacterial effectiveness of chitosan-based nanofibers in the filtration, biomedicine, and food protection industries. The results are promising in terms of research into sustainable materials. This review focuses on the electrospinning of chitosan for antibacterial applications and shows current trends in this field. In addition, various aspects such as the parameters affecting the antibacterial properties of chitosan are presented, and the application areas of electrospun chitosan nanofibers in the fields of air and water filtration, food storage, wound treatment, and tissue engineering are discussed in more detail.


2021 ◽  
Vol 7 (4) ◽  
pp. 86
Author(s):  
Yuri Natori ◽  
Yoshiaki Kinase ◽  
Norihiro Ikemoto ◽  
Fabio Spaziani ◽  
Tsutomu Kojima ◽  
...  

An iodine-doped activated carbon (named IodAC) was developed by adsorbing molecular iodine (I2) on commercially available activated carbon (AC). Iodine was selected with the purpose to add its well-known antibacterial and antiviral properties to the AC and in order to produce an innovative material for environmental pathogens control and for healthcare-related applications. The impregnation method achieved the goal of strongly adsorbing iodine on the AC surface, since both volatility and water solubility resulted to be negligible, and therefore it did not affect the stability of the material. An antibacterial test (on Escherichia coli) and an antiviral test (on an avian influenza strain) were conducted, showing the effectiveness of IodAC against the pathogens. In addition, IodAC was also compared to slaked lime (a material widely used for disinfection of outdoor spaces and livestock farming areas). The data proved the performance of IodAC against virus and bacteria and also evidenced a more stable and long-lasting disinfecting power of IodAC compared to slaked lime, the later reacting with carbon dioxide and suffering a gradually decrease of its disinfectant power; such drawback does not affect IodAC. Overall, the presented results show that IodAC can be used for a wide range of applications, including as a granular disinfectant for public spaces, for water disinfection, zoonotic diseases countermeasures (e.g., as an animal feed additive for avian influenza control), post-harvest food storage, and sanitization. Its characteristics also indicate its potential to be used for medical treatments, such as for blood, intestinal (for HIV, sepsis, irritable syndrome, ulcerative colitis therapy), and medical supplies (antibacterial bandages, gauze, cotton, etc.) sterilization.


Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7732
Author(s):  
Wiktoria Grzebieniarz ◽  
Nikola Nowak ◽  
Gohar Khachatryan ◽  
Marcel Krzan ◽  
Magdalena Krystyjan ◽  
...  

Nanocomposite materials are increasingly commonly used to ensure food safety and quality. Thanks to their unique properties, stemming from the presence of nanoparticles, they are used to develop advanced sensors and biosensors, e.g., for various harmful substances, heavy metals, microorganism growth, and environmental changes in food products. The aim of this study is to produce novel films based on natural resources—potato starch and chitosan—incorporating generated quantum dots of zinc sulfide and cadmium sulfide. The biocomposites were subjected to the following assays: FTIR spectroscopy, UV-VIS spectroscopy, photoluminescence spectroscopy, and SEM/TEM spectroscopy. Their mechanical properties were also analyzed, a colorimetric analysis was performed, and the water content, solubility, and water absorption capacity were determined. A storage test was also performed, using poultry meat covered with the produced films, to assess the microbiological quality. The results confirmed the presence of the quantum dots in the starch–chitosan matrix. The unique optical properties of the films were also demonstrated. It was shown that the composites with nanoparticles limited the growth of selected microorganisms in poultry meat. The food storage time was found to have an impact on the fluorescent properties of the composites. The results point to the possibility of using the produced films as active and smart packaging.


CORROSION ◽  
10.5006/3963 ◽  
2021 ◽  
Author(s):  
Kuo-Hsiang Chang ◽  
Belinda Hurley ◽  
Melvin Pascall ◽  
Gerald Frankel

Tinplate cans used to contain foodstuff are fabricated from steel coated with a thin layer of tin and then overcoated with a thin polymeric layer. Previous papers in this series investigated the corrosion behavior of tinplate cans containing chopped tomatoes or one of the chemical components found in cans of chopped tomatoes. The amino acid cysteine was found to be an aggressive agent that can cause corrosion and blackening of the can headspace region. In this study, the corrosion phenomena associated with tinplate cans were investigated by studying the behavior, individually, of uncoated pure tin, iron, and tinplate in chopped tomato, NaCl, and cysteine solutions using electrochemistry, optical microscopy, X-ray diffraction, scanning electron microscopy, and Raman spectroscopy. Black corrosion products, identified as sulfides, formed when the tin, iron, and tinplate specimens were exposed to cysteine solution at three different pH values. The black corrosion products were also found on both iron and tinplate when the samples were immersed in tomato solution. These results indicate that blackening on bare iron and tinplate could form easily from the decomposition of chemical compounds in heated tomatoes.


2021 ◽  
Vol 53 (2) ◽  
pp. 157-164
Author(s):  
José Jesús Obrador-Olán ◽  
Mepivoseth Castelán-Estrada ◽  
Alberto Córdova Sánchez ◽  
Sergio Salgado-García ◽  
Eustolia García-López ◽  
...  

The tight relationship between root architecture and uptake capacity of soil water and minerals, is well established. Support roots, generally long-lived, perform support functions such as transportation and food storage. Absorbing roots, thin and short-lived, absorb nutrients and regulate plant metabolism. Roots distribution in the soil profile is crucial for plant development. It optimizes resource usage and ensures a prompt response to seasonal changes. This work aimed to study the vertical distribution of the root system of nine-year-old oil palms in a haplic Luvisol, low fertility, moderately acidic, with Nitrogen (N) and Potassium (K) deficiency, average content of Phosphorous (P), and medium to low Cation Exchange Capacity (CEC). Using the cylinder method, soil samples were collected every 10 cm and down to 150 cm of soil depth, from each cardinal side of three soil profiles. The results showed that oil palms had good root development. Most roots (73%) were found in the first 30 cm of soil, with a predominance of fine roots (78%). At 50 cm in depth, fine roots represented 88%, thin roots, 67% and medium roots, 94%. Further study should assess root length density at 15, 20, 25, and 30 years. Highlights - Haplic luvisols are optimal soils for oil palm cultivation due to their depth (> 150cm), over 50% base saturation, and pH of 5.5-6.6. - Root length density (RLD) decreased as soil depth increased. Although most oil palm roots are found in surface horizons, roots can still be found at depths of up to 1.5-5 m. - The highest number of oil palm roots (73%) was found in the first 30 cm, with 78% of fine roots. - Fine roots were distributed throughout the entire soil profile, evidencing  high nutrient-absorption and metabolic activities.


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