Soil improvers and growing media. Sample preparation for chemical and physical tests, determination of dry matter content, moisture content and laboratory compacted bulk density

2008 ◽  
Keyword(s):  
Moisture Content ◽  
Sample Preparation ◽  
Bulk Density ◽  
Dry Matter ◽  
Matter Content ◽  
Dry Matter Content ◽  
Growing Media ◽  
Physical Tests ◽  
Soil Improvers

scholarly journals Assessment of Proximate Profile of Selected Fin and Shell Fish and Physicochemical Assessment of Water from Named Rivers in Ogoniland

2020 ◽  
pp. 16-27
Author(s):  
Adata A. Jumbo ◽  
M. O. Wegwu ◽  
D. C. Belonwu ◽  
B. M. Onyegeme- Okerenta
Keyword(s):  
Moisture Content ◽  
Dry Matter ◽  
Suspended Solids ◽  
Oxygen Demand ◽  
Petroleum Products ◽  
Physicochemical Analysis ◽  
Matter Content ◽  
Dry Matter Content ◽  
Crude Fibre ◽  
Study Sites

Aims: This study investigated the physicochemical assessment of Rivers Kaa and Bodo in Ogoniland, as well as the proximate profile of selected fin and shell fish from these Rivers. Study Design: Random sampling. Place and Duration of Study: Kaa and Bodo communities of Ogoniland, between August and November 2014. Methodology: The physicochemical analysis; pH, temperature (T), biological oxygen demand (BOD), chemical oxygen demand (COD), dissolved oxygen (DO), total suspended solids (TSS), total dissolved solids (TDS), conductivity (C), salinity (S) and total hydrocarbon content (THC), were done. The results were compared to FEPA and APHA permissible limits. Proximate composition was determined using Association of Official Analytical Chemist standard analytical methods. Results: Physicochemical analysis results showed that T (26.5±.010), (26.8±.006) and TSS (8.68±.006), (12.5±.006) for Kaa were lower than Bodo (sp≤0.05), S (7.20±.021), (8.40±.010) and THC (0.25±.015), (3.00±.040) were both lower for Kaa than Bodo, at (p≤0.05), BOD was higher for samples collected from Bodo than samples collected from Kaa (188±.234), (259±.690). The TDS and Conductivity were both higher for samples from Bodo than those from Kaa, while pH and DO were higher for samples collected from Kaa than samples collected from Bodo. The moisture content for all samples collected from Kaa (63.7±.289), (72.5±.488), (75.1±.973), (67.4±.455), were significantly lower at p≤0.05 than the moisture content for samples from Bodo (68.7±.514), (80.6±.476), (86.2±.790), (74.5±.514) indicating that the samples from Kaa are better sources of protein, lipid, and energy than samples from Bodo. The protein, lipid, crude fibre, ash and dry matter content of all samples from Kaa were significantly higher (p≤0.05) than those for samples from Bodo. Conclusion: These findings suggest a contamination of the study sites particularly Bodo with petroleum products. Furthermore, it shows that the protein contents in all samples from Bodo were below the recommended standards, suggesting that the consumption of fishes from the study area particularly Bodo, is unhealthy.

scholarly journals Plant of Lamiaceae family for cultivation at the vertical hydroponic installation

2020 ◽  
pp. 72-75
Author(s):  
I. T. Balashova ◽  
L. V. Bespalko ◽  
A. V. Molchanova ◽  
E. V. Pinchuk ◽  
N. E. Maschenko
Keyword(s):  
Ascorbic Acid ◽  
Secondary Metabolites ◽  
Dry Matter ◽  
Matter Content ◽  
Leafy Vegetables ◽  
Dry Matter Content ◽  
Monarda Fistulosa ◽  
Vertical Farming ◽  
Content Determination

Relevance. Vertical farming – is a new and advanced direction in greenhouse vegetable cultivation. Expansion biodiversity of plants for vertical farming occur with help of green leafy vegetables. Plants of Lamiaceae family are well known as aromatic and medicinal plants with high content of substances with antioxidant activity. It allows use these plants as a base for the functional nutrition. Leafy parts the plants of Lamiaceae family may be used as aromatic and healthy additions to traditional foods, such as salads, soups and sauces.  Goal of the study: analysis the biochemical composition of leafy parts plants of Lamiaceaefamily, cultivated at the multi circle hydroponic construction. Materials and methods. 1) Plants: Monarda fistulosa L. (the breeding sample №5 U.P.), Monarda citriodora Cerv. ex Lag. (Simka variety), Melissa officinalisL. (Zhemchuzhina variety). 2) secondary metabolites: flavonoid glycoside linarozid and steroid glycoside moldstim. Methods. 1) cultivation of plants Lamiaceae family at the 5 circles hydroponic construction; 2) analytic methods: determination of dry matter content, determination of ascorbic acid content, determination sum of chlorophylls and carotenoids, determination sum of antioxidants; 3) statistical methods. Results. First experiment the cultivation of plants Lamiaceae family at the multi circle hydroponic construction was successful. Location of plants at different circles of hydroponic installation didn’t influence the content of dry matter, ascorbic acid and sum of chlorophylls in leafy parts of plants Monarda fistulosaL. The content of dry matter and sum of antioxidants in leafy parts of Monarda fistulosaL. plants of the first cutting is significantly higher than of other cuttings. So, we can recommend the leaves of Monarda fistulosa L. plants of the first cutting for the healthy additions in the scheme of the functional nutrition. Seed treatment with water solutions of secondary metabolites changed significantly the weight of leaves: it was increased in Monarda citriodoraCerv. ex Lag. and in Melissa officinalisL. 

Key parameters in sludge dewatering: testing for the shear sensitivity and EPS content

2002 ◽  
Vol 46 (10) ◽  
pp. 105-114 ◽  
Author(s):  
L.H. Mikkelsen ◽  
T. Mascarenhas ◽  
P.H. Nielsen
Keyword(s):  
Laboratory Test ◽  
Dry Matter ◽  
Extracellular Polymeric Substances ◽  
Process Development ◽  
Matter Content ◽  
Dry Matter Content ◽  
Sludge Dewatering ◽  
Shear Sensitivity ◽  
Test Reactor

The fraction of extractable extracellular polymeric substances (EPS) and the shear sensitivity (kSS) are key parameters with respect to sludge dewatering, affecting the dry matter content of dewatered sludge and the dewatering rate and conditioner demand, respectively. Methods are described for determination of the two key parameters by use of the same laboratory test reactor. The implications of such characterisation with respect to dewatering are discussed based on examples of application to sludge processing and novel process development for sludge minimisation.

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