Use of electrical conductivity to predict water-holding capacity in post-rigor pork

Meat Science ◽  
2000 ◽  
Vol 55 (4) ◽  
pp. 385-389 ◽  
Author(s):  
S Lee ◽  
J.M Norman ◽  
S Gunasekaran ◽  
R.L.J.M van Laack ◽  
B.C Kim ◽  
...  
2019 ◽  
Vol 8 (1) ◽  
pp. 6-10
Author(s):  
Andry Hammonang Sianturi ◽  
Immanuel Putra Riau Hutagaol ◽  
Bambang Trisakti ◽  
Irvan

The process of composting empty fruit bunches and Azolla microphylla by asistance active organic liquid fertilizer was an alternative in the utilization of solid waste produced from the palm oil mill. This research was to produce good quality compost from a mixture of 60%:40% weight empty fruit bunches and azolla microphylla with asistance active organic liquid fertilizer. The composting process is done by entering empty fruit bunches and Azolla microphylla on the composter and added active organic liquid fertilizer to achieve the moisture content  value of 55%-65%. During composting, the moisture content was kept on the optimum condition by adding the active organic liquid fertilizer. The parameters analyzed were temperature, moisture content, pH, water holding capacity, electrical conductivity, and C-N. The result showed that compost can be produced within ± 30 days with characteristic of pH 8.8; Moisture Content 59,92%, Water Holding Capacity 86%,  C 27.24%,  N 1.53


2020 ◽  
Vol 10 (2) ◽  
pp. 5224-5228

An ecofriendly technique to on farm burning of biomass by making biochar from agricultural waste was provided. Characteristic studies of biomass and biochar such as SEM, Ultimate and proximate analysis, pH, Cation exchange capacity, Water holding capacity, Electrical conductivity, Soil organic matter and Dry matter production were examined. Adsorption and desorption of carbofuran in soil were studied in batch experiment mode. From the experimental studies, it was observed that pH, Cation exchange capacity, Water holding capacity, Electrical Conductivity, Soil organic content and dry matter production increases with biochar addition. Adsorption Studies show that carbofuran adsorbed with control is 0.45 mg/g whereas with 3%BC it was 6.375 mg/g and desorption studies show that with 3% biochar carbofuran desorption is less. Hence Capsicum Annuam Biochar could be one of the promising option for improving the soil health as well as for adsorbing the pesticides.


2014 ◽  
Vol 14 (3) ◽  
pp. 737-747 ◽  
Author(s):  
Marta Chmiel ◽  
Mirosław Słowiñski ◽  
Sławomir Janakowski

AbstractThe aim of this study was to evaluate selected quality attributes of pork longissimus lumborum (LL) muscle characterized by Rfn and PSe occurrence considering its microstructure. The material used in the research was 100 pork meat samples of normal quality (RFN – red, firm, normal, non-exudative) and 100 pork meat samples with PSe defect. The digital images of microstructure of selected meat samples were captured and some quality attributes, including ph level, drip loss, electrical conductivity (ec), water holding capacity (Whc) and ciel*a*b* parameters, were determined. Based on the findings obtained it was concluded that PSE meat (pH24h≤5.5) was characterized by higher degradation of muscle fibre structure when compared with the normal meat (RFN). The differences in the microstructure of PSE and RFN meat influenced the colour, electrical conductivity, drip loss and WHC of the meat. The PSE meat was characterized by a signifi- cantly lighter color and significantly higher electrical conductivity, along with more intense drip loss and worsened water holding capacity in comparison with Rfn meat.


Author(s):  
Rahul Kamble

Forest is an important ecosystem service to human beings. In recent decades the forest is facing tremendous pressure from anthropogenic activities. One of the activities is the burning of forest floor for easy collection of non-timber forest produce. As a result of this number of incidences of forest fires has increased in the tribal-dominated area of the world. These forest fires have adverse impacts on soil properties which will ultimately in the long term have impacts on the forest ecosystem. Taking into consideration this fact this study was attempted to assess the impacts of controlled forest fires on the physicochemical properties of forest soil in the Gadchiroli forest circle of Central India. To assess the impacts six sampling sites from the forest where identified from the study area where no previous forest fire history was recorded in that season. Initial soil sampling before controlled forest fire was carried out in summer 2019 by quartering method in the topsoil layer (1-5 cm). A controlled forest fire was carried out in the same area. The soil was prepared for soil analysis and analysed by adopting standard methods for bulk density, water holding capacity, pH, electrical conductivity, organic carbon, and organic matter. Results revealed that forest fires increase the bulk density of soil, at 50% (n = 3) sampling locations water holding capacity got reduced down; whereas, at other half increased in capacity was observed. In the case of soil pH 66% (n = 4) sample reported increased in soil pH and at other reduction in soil pH was recorded. Except at one sampling location electrical conductivity was reduced. A similar trend was also noticed for organic carbon and organic matter. Bulk density and water holding capacity will have long term impacts; whereas, pH, electrical conductivity, organic carbon and organic matter will have short term impacts. Furthermore, in those sampling locations where forest fire does not occur in the last 2-3 years organic carbon and organic matter content of the soil is high. Thus, measures to be taken to reduce forest fires activities by incorporating an effective forest fire management system at a place by incorporating fire load management subsystem and fire suppression subsystem.  


Khazanah ◽  
2020 ◽  
Vol 12 (2) ◽  
Author(s):  
Warit Abi Nurazaq ◽  
◽  
Bambang Purwantana ◽  
Radi Radi ◽  
Andri Prima Nugroho ◽  
...  

Tropical country has a large biomass provide from agricultural residue. The biomass has potential to be processed as biochar. In general, biochar can be utilized as soil amendment in order to increase the ability of soil to retain nutrients, reduce surface runoff, due to excess water, and adding biodiversity of soils that are very useful for plant growth. The biochar characteristics are strongly related to the feedstock types and also their pyrolysis method. This research aims to study the physical characteristics of tropical biochar and their potential suitability in soil improvement. The biochar was produced by slow pyrolysis method using a vertical bed kiln. The feedstock were 9 types of agricultural residue including: mango leaf, longan leaf, teak leaf, mango branch, longan branch, rubber branch, corncob, rice straw, and rice husk. Temperature of the pyrolisis process was in the range of 400 °C to 600 °C. The results indicated that the physical properties of feedstock affects the characteristics of biochar. The higher bulk density and fixed carbon value the greater yield of biochar. Compare to their raw materials, the average water content of biochar was reduced (0.2–3.85 %), while pH increased (7.06–9.9). The electrical conductivity in general also increased (0.11–2.9 ds.m-1 ). Bulk density changed, corncob, and branches materials decreased, while rice straw, rice husk and leaves materials increased. The water holding capacity was a fairly low number (4–20 %). Application of the utilized biochar as a soil amendment is to improve soil chemical properties (pH, electrical conductivity, and availability of N-P contents) and physical properties (bulk density, porosity, and water holding capacity). Application for different soil types requires different biochar characteristics, it is influenced by the type of raw material used, temperature, and combustion time.


2021 ◽  
Vol 3 (3) ◽  
Author(s):  
K. R. Panwar ◽  
G. Tripathi

In this study, an analysis of organic fertilizer of an agro-waste (Sesame straw) plus cow dung was carried out using an epigeic earthworm species Eisenia fetida and Perionyx sansibaricus. Sesame straw is abundantly produced after each harvesting of the crop in Kharif season in arid region of tropical India. The compost produced in presence and absence of earthworm exhibit significant (P<0.001) and non-significant (P>0.05) changes in physicochemical properties respectively. In control bedding, the values of water holding capacity enhanced significantly (P<0.05) by 1.28 fold, while organic carbon and C/N ratio decreased significantly (P<0.05) by 19.93% and 31.25% respectively after 60 days of composting.Working of E. fetida in the bedding material showed significant (P<0.001) difference in the level of pH, electrical conductivity, water holding capacity, organic carbon, total nitrogen, C/N ratio, available phosphorous and available potassium. After 60 days of working of P. sansibaricus, these physicochemical properties of the bedding substrate also changed significantly (P<0.001). Analysis of vermibed showed a gradual increase in electrical conductivity, water holding capacity, total nitrogen, available phosphorus and available potassium by 1.51, 1.86, 1.95, 1.78 and 1.75 fold respectively. While the values of pH, organic carbon and C/N ratio declined by 9.30%, 41.80% and 71.48% respectively within 60 days of decomposition. Thus, E. fetida and P. sansibaricus can be applied for production of organic fertilizer of sesame chaff plus cow dung to fulfill the requirement of bio-fertilizers for organic farming and agro-waste management in arid environment.


Author(s):  
Rahul Kamble

Forest is an important ecosystem service to human beings. In recent decades the forest is facing tremendous pressure from anthropogenic activities. One of the activities is the burning of forest floor for easy collection of non-timber forest produce. As a result of this number of incidences of forest fires has increased in the tribal-dominated area of the world. These forest fires have adverse impacts on soil properties which will ultimately in the long term have impacts on the forest ecosystem. Taking into consideration this fact this study was attempted to assess the impacts of controlled forest fires on the physicochemical properties of forest soil in the Gadchiroli forest circle of Central India. To assess the impacts six sampling sites from the forest where identified from the study area where no previous forest fire history was recorded in that season. Initial soil sampling before controlled forest fire was carried out in summer 2019 by quartering method in the topsoil layer (1-5 cm). A controlled forest fire was carried out in the same area. The soil was prepared for soil analysis and analysed by adopting standard methods for bulk density, water holding capacity, pH, electrical conductivity, organic carbon, and organic matter. Results revealed that forest fires increase the bulk density of soil, at 50% (n = 3) sampling locations water holding capacity got reduced down; whereas, at other half increased in capacity was observed. In the case of soil pH 66% (n = 4) sample reported increased in soil pH and at other reduction in soil pH was recorded. Except at one sampling location electrical conductivity was reduced. A similar trend was also noticed for organic carbon and organic matter. Bulk density and water holding capacity will have long term impacts; whereas, pH, electrical conductivity, organic carbon and organic matter will have short term impacts. Furthermore, in those sampling locations where forest fire does not occur in the last 2-3 years organic carbon and organic matter content of the soil is high. Thus, measures to be taken to reduce forest fires activities by incorporating an effective forest fire management system at a place by incorporating fire load management subsystem and fire suppression subsystem.  


2019 ◽  
Vol 6 (1) ◽  
pp. 20
Author(s):  
Abdul Rahman Ollong ◽  
Rizki Arizona ◽  
Rusli Badaruddin

ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh penambahan minyak buah merah (MBM) pada pakan terhadap kualitas fisik daging ayam broiler. Seratus ekor ayam broiler umur sehari (DOC) ditempatkan pada lima kelompok perlakuan pakan yang berbeda, yaitu: P1 (pakan kontrol/tanpa penambahan minyak), P2 (2% MBM), P3 (4% MBM), P4 (6% MBM) dan P5 (6% Minyak kelapa sawit). Setiap kelompok perlakuan terdiri dari empat ulangan masing-masing dengan lima ekor. Ayam broiler dipelihara selama 35 hari. Rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan analisis variansi pola searah dan diuji lanjut dengan Duncan’s New Multiple Range Test (DMRT). Hasil penelitian menunjukkan bahwa semua variable yang diamati menunjukkan adanya pengaruh nyata (P<0,05) terhadap perlakuan yang diberikan. Dari hasil penelitian ini dapat disimpulkan bahwa penggunaan minyak buah merah (MBM) dalam pakan mampu memberikan pengaruh terhadap pH Daging, Daya Ikat Air (DIA), susut masak dan keempukan daging ayam broiler.Kata kunci : daging ayam broiler, daya ikat air, keempukan daging, pH daging, susut masakABSTRACT The experiment was conducted to study the effect of red fruit oil (RFO) onphysical quality  of broiler chicken. One hundred day old chicken (DOC) were placed in four groups of different treatments, of from levels of RFO (P1 (diet without addition of RFO), P2 (2% RFO), P3 (4% RFO) and P4 (6% RFO) and P5 (6% Palm oil)). The treatment group consisted of fivereplications with five birds each. Broiler chickens were reared for 35 days. Statistical analysis used Completely Randomized Design (CRD) and followed by Duncan’s New Multiple Range Test (DMRT). The results showed that the pH value, moisture content, water holding capacity, and cooking loss was significant differences. It could be concluded that the addition of red fruit oil in the diet give effect  of broiler chicken meat.Keywords: broiler meat, cooking loss, moisture content, pH value, water holding capacity


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