secondary product
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2021 ◽  
Vol 6 (10) ◽  
pp. 1941-1947
Author(s):  
Royke Vincentius Febriyana ◽  
Dwi Cahyadi ◽  
Ratna Wulaningrum ◽  
Rahmat Rahmat

The abundantly harvested dragon fruit has encouraged the people at Batuah Village to make secondary product, in order to avoiding loss because the fruit is rotten, such as the dragon fruit crackers. Nowdays, the product has already marketed in the Mercure-Ibis Samarinda hotel chain. For the purpose it is considered important for the products to have good packaging. Therefore, the community service team do the coaching on how to make basic packaging design. The coaching trainee is taught on how to make packaging design from existed packaging pattern and then adjust it to the size of their products. The trainee was also taught on how to make simple design with design software. The results are that the trainee can make packaging design which the design and size are already adjusted with their product’s needs.


Author(s):  
Marzieh Hejazy ◽  
Seyed Amin Khatibi ◽  
Zahra Shamsi

Background: Frying is one of the popular cooking methods for the preparation of food especially meat products. However, this process has some adverse effects, such as lipid oxidation that results in deterioration and rancidity of food during preparation and storage. Malondialdehyde (MDA) as a secondary product of oxidation is commonly used as an index of rancidity in food products. However, the level of MDA produced during the frying process varies depending on the type of food. Methods: This study was performed to evaluate the levels of MDA before and after the frying process in different products, including chicken, fish, pan kebab, beef, sausage, and hamburger. Also, the effect of meat content in hamburger was evaluated on the MDA level. The spectrophotometric thiobarbituric acid reactive substances (TBARS) test was used to determine MDA in the food products. Results: The concentration of MDA in the products increased significantly (P < 0.01) after frying in oil. The highest amount of MDA between the products was detected in fried fish (1.24 µM/g). By increasing the percentage of meat in hamburgers, the content of MDA increased in this product. In the hamburger containing 90% of meat, the MDA level was significantly (P < 0.05) higher than others (0.98 µM/g). Conclusion: The results of the present study can provide proper knowledge about the levels of lipid peroxidation and the safety of different fried meat products.


Author(s):  
Ankita Sharma ◽  
Ishita Ishita ◽  
Inder Kumar ◽  
Kritika Verma ◽  
Bhumika Thakur ◽  
...  

Medicinal plants have bioactive compounds, which are used to treatments of various diseases. In the present study, Persicaria sagittata medicinal plant was used for the preliminary phytochemical screening. Methanol and petroleum ether were used as a solvent for obtaining the extraction of the plant. Both the extracts were further study for qualitative phytochemical screening using standard methods. Phytochemical screening shows that methanolic extract possesses the presence of tannins, flavonoids, and vitamin A as tannins and flavonoids are helpful for the uric acid stones. The study reveals that medicinal plant provides a basis of its use in medicine, improve to further drugs in the pharmaceutical area, and contains different biologically active constituents, and the secondary product is valuable of further analysis.


2021 ◽  
Vol 11 (14) ◽  
pp. 6615
Author(s):  
Olga Zubkova ◽  
Aleksey Alexeev ◽  
Arseniy Polyanskiy ◽  
Kirill Karapetyan ◽  
Olga Kononchuk ◽  
...  

The solution of the sludge utilization problem and yield increase at processing plants have great importance today all over the world. Disasters associated with the tailings dams failures have madeus develop technologies of tailings sludge utilization as a commercial product, reducing the environmental damage on the regions of mineral extraction. This research aimed to provide new data, methods and an analytical approach to solve the saponite sludge accumulation problem on mining enterprises with silicate coagulant to increase the rate of cycle water clarification for the enrichment process and the recycling of sludge to reduce its hazardous effect. Samples were taken in the deposit located in the north of the European part of Russia, where diamond bearing ore contain montmorillonite minerals, mostly saponite, which is considered to be a perspective secondary product. The content of this mineral in the sludge is above 20 wt.%. Saponite is a clay mineral with the general chemical formula (Ca,Na)0.3(Mg, Fe2+)3(Si, Al)4O10(OH)2·4H2O. The mineral has high adsorption, ion exchange, and catalytic and filtration properties; due to the developed diffuse layer, saponite particles are highly stable in an aqueous medium—the resulting suspension is highly stable and has slow sedimentation. During the research, a positive effect on the sedimentation process of clay saponite particles was established, due to the introduction of a coagulant containing 70% tricalcium silicate, at a dosage of 2 g/dm3 coagulant; the degree of purification of water containing the saponite clay suspension is 99%. The condensed sediment after the thermal drying and with the limestone addition can be used again as a coagulant or secondary product with enhanced properties;therefore, the sludge will be processed, and not stored.


Author(s):  
Sanjeev Kumar ◽  
Jitendra Kumar ◽  
Jyoti Tripathi ◽  
Sumit Gupta ◽  
Satyendra Gautam

2021 ◽  
Vol 8 (3) ◽  
Author(s):  
Christopher Wulff

AbstractWe construct secondary cup and cap products on coarse (co-)homology theories from given cross and slant products. They are defined for coarse spaces relative to weak generalized controlled deformation retracts. On ordinary coarse cohomology, our secondary cup product agrees with a secondary product defined by Roe. For coarsifications of topological coarse (co-)homology theories, our secondary cup and cap products correspond to the primary cup and cap products on Higson dominated coronas via transgression maps. And in the case of coarse $$\mathrm {K}$$ K -theory and -homology, the secondary products correspond to canonical primary products between the $$\mathrm {K}$$ K -theories of the stable Higson corona and the Roe algebra under assembly and co-assembly.


2021 ◽  
Vol 5 (2) ◽  
pp. 384-391
Author(s):  
Andi Muhamad Iqbal Akbar Asfar ◽  
M. Yasser ◽  
Andi Nurul Istiyana ◽  
Andi Muhammad Irfan Taufan Asfar ◽  
Ady Kurnia

Coconut oil processing or what is known by the Bugis people in South Sulawesi, namely Parede Oil, leaves a secondary product in the form of oil crust. This oil crust is not fully utilized, especially as a product that can increase its selling value. Therefore, this community service in the form of a community partnership program conducts training in processing oil crust into oil crust sauce. Until now, this product has survived with a shelf life of more than 4 months without the addition of any preservatives. This product is packaged in a chili pot with a net weight of 60 grams. This program has succeeded in improving the skills of partners, namely the PKK Latellang Village, Patimpeng District, Bone Regency, South Sulawesi Province, in utilizing oil crust to become oil-based chili sauce which has high economic value.


Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1344
Author(s):  
Linda Makovicka Osvaldova ◽  
Iveta Markova ◽  
Stanislav Jochim ◽  
Jan Bares

Straw, a natural cellulose-based material, has become part of building elements. Eco-panels, compressed straw in a cardboard casing, is used as building insulation. Eco-panel is a secondary product with excellent insulating properties. If suitably fire-treated (insulation and covering), straw panels’ fire resistance may be increased. This contribution deals with monitoring the behavior of eco-panels exposed to a small ignition initiator (flame). The samples consisted of compressed straw boards coated with a 40 mm thick cardboard. Samples were exposed to a flame for 5 and 10 min. The influence of the selected factors (size of the board, orientation of flame with the sample) were compared on the basis of experimentally obtained data: mass loss. The results obtained do not show a statistically significant influence of the position of the sample and the initiating source (flame). The results presented in the article confirm the justifiability of fire tests. As the results of the experiments prove, the position of a small burner for igniting such material is also important. Such weakness of the material can also be eliminated by design solutions in the construction. The experiment on larger samples also confirmed the justifiability of fire tests along with the need for flame retardancy of such material for its safe application in construction.


Author(s):  
Engkos Achmad Kosasih ◽  
Muhammad Irfan Dzaky ◽  
Ahmad Zikri ◽  
Ahmad Fadhil Nugraha

The problem of freshwater is an issue that has been hot for discussion for decades. The number of industries and the increasing population in the world has caused the need for clean water to increase drastically. This scarcity occurs because 97.7% of the water available on earth contains salt. Only 2.3% contains no salt, and 99.5% of the amount is ice, groundwater, and the atmosphere. With a large percentage of seawater, water needs for human survival can be met by using the desalination method. In this study using a throttling valve and utilizing cold water (secondary product) as a refrigerant to cool the room. This research will also discuss how specific energy consumption and cooling heat are affected by compressor pressure and cyclone pressure to prove how capable and efficient the renewable desalination method is in producing aquadest water, which is expected to help water availability to meet water needs. The simulation results obtained The optimum value of the system specific energy consumption is 287.90 kJ / kg with a compressor pressure value of 10 kPa and a cyclone temperature value of 4 ° C. The optimal value of system cooling heat is 51.01 kW with a compressor pressure value. At 10 kPa and a cyclone temperature value of 2 ° C. The effect of the cooling heat value significantly affects the specific energy consumption required for this system.


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