scholarly journals Proximate Analysis and Mineral Composition of Commercially Important Spiny Lobsters from Visakhapatnam Coast, Andhra Pradesh, India

2021 ◽  
pp. 39-47
Author(s):  
Pavan Kumar Kommuri ◽  
Naresh Mugada ◽  
Ramesh Babu Kondamudi
Keyword(s):  
Protein Content ◽  
Andhra Pradesh ◽  
Research Work ◽  
Dry Weight ◽  
Proximate Analysis ◽  
Weight Basis ◽  
Spiny Lobsters ◽  
Moisture Percentage ◽  
Commercially Important ◽  
Visakhapatnam Coast

The research work was carried out to assess the dietary qualities of spiny lobsters collected from Visakhapatnam fishing harbour, situated on the northeast coast of Andhra Pradesh. The species selected were Panulirus homarus (Linnaeus, 1758), P. ornatus (Fabricius, 1798), P. versicolor (Latreille, 1804), and P. polyphagus (Herbst, 1793). The species were morphometrically measured, and their tissue was analyzed for the comparative proximate composition (Moisture, Protein, Lipid, and Ash) on a dry weight basis. Protein content was found to be high in all the lobster species. Highest protein content was observed in P. homarus (mg/g), followed by P. ornatus and P. versicolor (mg/g). Moisture percentage was 72.7, 75.7, 76.2, and 74.8% respectively. In addition, four minerals were analysed (Ca, Na, K, and Mg) in the present study. Calcium was observed maximum in all the species, and Magnesium was recorded minimum in all the lobsters.

scholarly journals Adaptación y calidad tecnológica de la variedad de frijol Negro Tacana.

2016 ◽  
Vol 7 (1) ◽  
pp. 26 ◽  
Author(s):  
Ernesto López ◽  
Noé Becerra ◽  
Octavio Cano ◽  
Dora Zaleta ◽  
Jorge Acosta
Keyword(s):  
Protein Content ◽  
Dry Weight ◽  
Humid Tropics ◽  
Weight Basis ◽  
Fiber Content ◽  
Experimental Conditions ◽  
Yield Trial ◽  
Wide Adaptation ◽  
Stable Yield

In this paper the results obtained with a uniform yield trial including 22 bean genotypes grown in three states of Mexico are presented. Under experimental conditions, bred line DOR 390 resulted outstanding for its wide adaptation, high and stable yield (1041 kg/ha, bi=1.0 Sd2i=0) Under farmer’s conditions, DOR 390 (1214 kg/ha) was superior to commercial cvs, Negro Cotaxtla 91 (1142 kg/ha) and Jamapa (867 kg/ha); at neight locations of the humid tropics in the States of Tamaulipas, Veracruz and Chiapas, DOR 390 proved to be highly resistant in comparison to Negro Huasteco 81. Comparing Dor 390 to bred cvs. and landraces of the same commercial class, tropical black, Dor 390 showed and average protein content of 25%, on a dry weight basis, and the highest fiber content of the seven genotypes evaluated. DOR 390 was registered as a new cultivar in 1993, and made available to the farmers of the humid tropics in 1994, under the name of “Negro Tacana”.

scholarly journals Toxic affects of chromium on some quality parameters of Sorghum bicolor (L.)

2018 ◽  
Vol 10 (1) ◽  
pp. 122-127 ◽  
Author(s):  
Sweety Sihag ◽  
U. N. Joshi
Keyword(s):  
Sorghum Bicolor ◽  
Protein Content ◽  
Chlorophyll Content ◽  
Potassium Dichromate ◽  
Dry Weight ◽  
Quality Parameters ◽  
Weight Basis ◽  
Growth Stages ◽  
Fresh Weight ◽  
Sorghum Bicolor L

A pot experiment was conducted to determine the effects of varying Cr (VI) levels [0.0–4.0 mg Cr (VI) kg-1 soil in the form of potassium dichromate] on the some quality parameters of sorghum Sorghum bicolor (L.). Quality parameters was measured in terms of protein content, chlorophyll content, and IVDMD ( In vitro dry matter digestibility) content at different growth stages, i.e. 35 DAS, 70 DAS and 90 DAS (Days after sowing) that were adversely affected with an increase in Cr (VI) levels from 0.0 to 4.0 mg Cr (VI) kg-1 soil. The decline in protein content 4.67 g/ kg dry weight at T4 was observed as compared to control (T1) ( 8.96 g/kg dry weight basis) at 35 DAS in leaves , Total chlorophyll content declined from 3.25 mg g-1 fresh weight (T1) to 2.40 mg g-1 fresh weight (T4) at 35 DAS and IVDMD content declined from 43.60 to 33.60 per cent dry weight basis with increment in chromium concentration. It is concluded that Cr (VI) at higher doses (4.0 mg Cr (VI) kg-1 soil) adversly affects the quality parameters of Forage sorghum Sorghum bicolor (L.) however, quality parameters are responsible for nutritive value of sorghum Sorghum bicolor (L.).

Composition of Methanospirillum hungatii GP1 during growth on different media

1980 ◽  
Vol 26 (5) ◽  
pp. 577-582 ◽  
Author(s):  
C. Breuil ◽  
G. B. Patel
Keyword(s):  
Protein Content ◽  
Ribonucleic Acid ◽  
Acid Content ◽  
Deoxyribonucleic Acid ◽  
Synthetic Medium ◽  
Density Measurement ◽  
Dry Weight ◽  
Weight Basis ◽  
Total Carbohydrate ◽  
Mineral Salts

Growth of Methanospirillum hungatii GP1 as determined by optical density measurement was comparable to growth assessed by cell dry weight, ribonucleic acid content, and deoxyribonucleic acid content. Cultivation of M. hungatii on synthetic medium containing mineral salts, vitamins, and acetic acid indicated that, on a dry weight basis, cell constituents such as protein (71%), ribonucleic acid (15.8%), deoxyribonucleic acid (1.6%), and total carbohydrate (3.2%) did not vary significantly with the growth phase. Cells grown in the synthetic medium supplemented with yeast extract and tryptone had slightly higher protein content (76%), but the concentrations of the other cell constituents were similar and did not fluctuate much during growth. Nitrogen limiting growth resulted in somewhat lower ribonucleic acid content as well as slightly higher protein content than that in cells grown in nonlimiting medium. Methanospirillum hungatii did not accumulate any of the commonly known reserve materials under nitrogen or carbon and hydrogen limiting growth.

scholarly journals Economic analysis of farming and wild collection of seaweeds in Ramanathapuram District, Tamil Nadu

2017 ◽  
Vol 64 (4) ◽  
Author(s):  
B. Johnson ◽  
R. Narayanakumar ◽  
A. K. Abdul Nazar ◽  
P. Kaladharan ◽  
G. Gopakumar
Keyword(s):  
Economic Analysis ◽  
Tamil Nadu ◽  
Kappaphycus Alvarezii ◽  
Dry Weight ◽  
Red Alga ◽  
Weight Basis ◽  
Average Yield ◽  
Total Cost ◽  
Capital Productivity ◽  
Commercially Important

The commercially important red alga Kappaphycus alvarezii is widely cultivated along Tamil Nadu coast. Apart from farming, wild collection of seaweed is also being practiced by fishers for their livelihoods. The present study on economicsand constraints of farming and wild collection of seaweeds was undertaken in the Ramanathapuram District of Tamil Nadu, employing an expost-facto research design. The study found that the total cost of production for fabricating one bamboo raft(12 x 12 feet) was `1,050/-. The crop duration was 45 days and four to six crops were harvested in a year. The average yield was 200-260 kg per raft per crop. The price of harvested kappaphycus on wet and dry weight basis were `4 and `37.50 per kg respectively. Majority of seaweed farmers earned around `50,000/- to 1,00,000/- annually and the profit margin was 60%. The average gross revenue per trip per group of five members for wild collection of seaweed worked out to `6,700/- and the capital productivity was 0.30. It is interesting to note that about 20% of the respondents were those who left fishing and switched to farming and wild collection of seaweeds.

scholarly journals Effect of Wire Supports on Pod Yield of Winged Beans (Psophocarpus tetragonolobus (L.) DC.

1969 ◽  
Vol 64 (2) ◽  
pp. 211-218
Author(s):  
R. Del Valle, Jr. ◽  
M. A. Lugo-López ◽  
T. W. Scott
Keyword(s):  
Protein Content ◽  
Growth And Development ◽  
Dry Weight ◽  
Weight Basis ◽  
Psophocarpus Tetragonolobus ◽  
Soil Humidity ◽  
Pod Yield ◽  
Significant Difference ◽  
Tuber Production ◽  
Pod Growth

An experiment with winged beans (Psophocarpus tetragonolobus (L.) (DC.) was conducted in a Torres clay (Plinthic Palehumults) to evaluate the performance of WB 21-8 and WB 10-3, and the effect of using wire supports on growth and development, fresh pod yield and tuber production. Without wire supports, there were no differences between cultivars either in growth and development or in fresh pod yields. There was, however, a highly significant difference between cultivars when both were grown with wire supports. A significant difference between yields of plants with and without wire supports within cultivar WB 21-8 was evident, while no differences were recorded for cultivar WB 1 10-3. The interaction of cultivars and use of wire supports was significant. Fresh pod yields were consistently low for both cultivars when supports were omitted, probably due to pod rot as result of the high soil humidity during pod growth. A field-wide average of 5.7 t/ha was obtained from only three harvests. There were no significant differences in protein content between treatments. A mean protein content (dry weight basis) of 20% was recorded. Tuber samples (irrespective of cultivar) had a mean protein content of 10%.

Influence of calcium on the metabolism of chlorophyll, carotene, nucleic acid, and protein in Scenedesmus

1973 ◽  
Vol 51 (1) ◽  
pp. 121-125 ◽  
Author(s):  
Gaurangakumar Das
Keyword(s):  
Nucleic Acid ◽  
Protein Content ◽  
Dna Content ◽  
Culture Medium ◽  
Growth Period ◽  
Dry Weight ◽  
Weight Basis ◽  
Carotene Content ◽  
Calcium Supply

The influence of calcium supply on the chlorophyll, carotene, nucleic acid, and protein content in Scenedesmus obtusiusculus Chod. was investigated. Evidence showed that upon addition of calcium-starved cells to a culture medium containing calcium, the levels of all these components increased slowly for 15 h. During the next 33 h chlorophyll and carotene content increased more rapidly, and the chlorophyll a:b ratio also increased. During this growth period, both RNA and protein content increased linearly whereas DNA content did not increase on a dry weight basis throughout the period of observation.

Reclamation of polluted riverwater for aquaculture: removal of nutrients by microalgae

1995 ◽  
Vol 32 (3) ◽  
pp. 271-280
Author(s):  
M. H. Wong ◽  
Y. H. Cheung ◽  
S. F. Leung ◽  
S. P. Wong
Keyword(s):  
Hong Kong ◽  
Protein Content ◽  
Field Trial ◽  
Present Experiment ◽  
Crude Protein ◽  
Algal Growth ◽  
Dry Weight ◽  
Weight Basis ◽  
Crude Protein Content ◽  
Algal Products

The present experiment was designed to simulate an on-going field trial at Au Tau Substation, Agriculture and Fisheries Department, Hong Kong Government, using a series of fishponds to treat polluted riverwater, as well as for promoting algal growth, before the water was used for rearing freshwater fish. It was revealed that aeration was necessary to lower the level of ammonia. It also accelerated the conversion of ammonia to nitrite, and then nitrite to nitrate. Substantial amounts of metal (K, Mg, Cu, Zn) were also removed from the riverwater, possibly by algal assimilation. The algal products contained a high crude protein content (42% dry weight basis) which could be used to feed carp and tilapia.

Possible mechanism of gibberellin-induced chlorosis in lettuce seedlings

1973 ◽  
Vol 51 (1) ◽  
pp. 175-184 ◽  
Author(s):  
Gaurangakumar Das
Keyword(s):  
Nucleic Acid ◽  
Protein Content ◽  
Sugar Content ◽  
Dry Weight ◽  
Weight Basis ◽  
Nucleic Acid Content ◽  
Chlorophyll B ◽  
Lactuca Sativa L ◽  
Grand Rapids ◽  
Rna And Dna

Effects of gibberellin A3 (GA) on growth, pigments, protein, and nucleic acid content of the cotyledons of lettuce seedlings (Lactuca sativa L. cv. Grand Rapids) are reported. GA treatment increased both the total shoot and cotyledon fresh weights, and decreased chlorophyll content per cotyledon and on a dry weight basis. GA also decreased the protein content of the cotyledon, but increased the level of RNA and DNA measured on a dry weight basis. The hormone had no effect on the pheophytin: chlorophyll ratio, but increased the ratios of chlorophyll a: chlorophyll b, phytol: chlorophyll, and carotene: chlorophyll. GA also increased the sugar content of the cotyledons. Treatment of excised cotyledons with glucose had an effect similar to that of GA on chlorophyll and protein content. The data are discussed in relation to the mechanism of GA-induced chlorosis.

ERRORS ASSOCIATED WITH HERBAGE DISSECTION ANALYSES 2. Problems of species identification

1976 ◽  
pp. 213-225
Author(s):  
I.M. Ritchie ◽  
C.C. Boswell ◽  
A.M. Badland
Keyword(s):  
New Zealand ◽  
Dry Weight ◽  
Analytical Tool ◽  
Species Level ◽  
Weight Basis ◽  
Plant Identification ◽  
Leaf Fragment ◽  
Research Division ◽  
Or Groups ◽  
Botanical Analysis

HERBACE DISSECTION is the process in which samples of herbage cut from trials are separated by hand into component species. Heavy reliance is placed on herbage dissection as an analytical tool ,in New Zealand, and in the four botanical analysis laboratories in the Research Division of the Ministry of Agriculture and Fisheries about 20 000 samples are analysed each year. In the laboratory a representative subsample is taken by a rigorous quartering procedure until approximately 400 pieces of herbage remain. Each leaf fragment is then identified to species level or groups of these as appropriate. The fractions are then dried and the composition calculated on a percentage dry weight basis. The accuracy of the analyses of these laboratories has been monitored by a system of interchanging herbage dissection samples between them. From this, the need to separate subsampling errors from problems of plant identification was, appreciated and some of this work is described here.

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