Haemolymph specific gravity, soluble total protein and total solids of plant-reared, normal, and parasitized diet-reared tobacco hornworm larvae

1969 ◽  
Vol 15 (11) ◽  
pp. 2075-2084 ◽  
Author(s):  
Douglas L. Dahlman
1962 ◽  
Vol 8 (2) ◽  
pp. 158-165 ◽  
Author(s):  
A V Wolf ◽  
John B Fuller ◽  
E J Goldman ◽  
T D Mahony

Abstract New, precise, physical methods for the determination of total protein in serum or plasma and in urine are described. They are based upon the refractometric determination of total solids in these fluids before and after protein has been removed by coagulation and, in ordinary use, they require no special standardization or calibration. The urine method is applicable primarily to protein concentrations above 100mg./100 ml. A by-product of the urine method is the direct and simple determination of the nonprotein specific gravity of proteinuric urine.


1967 ◽  
Vol 50 (3) ◽  
pp. 690-700
Author(s):  
Frank C Lamb

Abstract Total solids by drying, refractive index, and specific gravity were determined on about 375 commercial samples of tomato juice, puree, and paste. Refractive index was determined with and without dilution of tomato paste; pectic enzymes were used to aid filtration and centrifugation. A new specific gravity bottle was used. The new AOAC method for total solids was compared with the former AOAC method on 115 samples. Variations from previous tables relating refractive index and total solids were of little significance up to 20% solids but were increasingly greater as solids increased above 20%. Data obtained in these studies showed lower values for total solids than the old tables in most instances. Separate regression equations had to be calculated for the solids content of the diluted and undiluted samples. Total solids by the official AOAC method was the most precise of the methods used. However, specific gravity and refractive index were both found to have satisfactory degrees of precision


2016 ◽  
Vol 44 (3) ◽  
pp. 132-136
Author(s):  
MY Arafat ◽  
R Habib ◽  
MSR Siddiki ◽  
MF Imam

This experiment was conducted to evaluate the quality of existing ultra-high temperature (UHT) treated milk available in two selected town markets of Bangladesh. A total of 27 UHT milk samples from three different brands–Pran Dairy (A), Aarong Dairy (B) and Farm Fresh (C) were collected from local markets at Mymensingh and Gazipur districts during the period of 1stSeptember to 29th November, 2014. Parameters studied in this experiment were organoleptic (flavour, consistency, colour and appearance), physic-chemical (specific gravity, acidity, total solids, solids-not-fat, fat, protein, lactose, and ash) and microbiological (Total Viable Count and Coliform Count). All the samples were similar in respect of color, flavor, taste and texture, and no significant difference was observed. However, significant differences were revealed (p<0.05) in case of specific gravity, acidity, total solids, solids-not-fat, and protein content. On the other hand, insignificant differences were found (p>0.05) in case of fat, lactose, and ash content. Total Viable Count and Coliform count were found to be nil in all the milk samples. Milk samples of Farm Fresh UHT milk were superior to other brands of UHT Milk in terms of contents of total solids (119.23±0.57 g/kg),fat (34.97±0.35g/kg), lactose (43.23±0.51g/kg), and ash (7.00±0.26g/kg). Though there were some fluctuations in all the parameters studied, all the milk samples conformed to the standard values for UHT milk, and in general all of the UHT milk samples studied in this experiment was of good quality.Bang. J. Anim. Sci. 2015. 44 (3):132-136


2020 ◽  
Vol 39 (01) ◽  
Author(s):  
Tahir Nazir ◽  
Mohammad Ashraf Pal ◽  
Ashaq Manzoor ◽  
Tarique Padder ◽  
Asif Hassan Sofi ◽  
...  

The current investigation was undertaken with the aim of studying the effect of breed of the animal on various physico-chemical, compositional and microbiological characteristics of bovine colostrum. While studying the effect of breed of the animal on various physico-chemical, compositional and microbiological characteristics of colostrum, it was found that the specific gravity, fat, total protein, casein protein, whey proteins, Lactose, total solids and solids not fat of the colostrum samples from local non-descript animals were significantly (p £ 0.05) lower compared to all other animal sources (breeds) under study. The fat content of Jersey cross (fi) [Jersey cross under field conditions] was significantly (p £ 0.05) higher than Jersey cross (fa) [Jersey cross under farm conditions]. Total protein content of Jersey and Jersey cross (fi) were found to be comparable however both these samples were found to be possessing significantly (p £ 0.05) higher values than Jersey cross (fa). Casein protein of Jersey and Jersey cross (fi) was found to be comparable however both these samples were found to be possessing significantly (p £ 0.05) higher values than Jersey cross (fa). Lactose content of Jersey was significantly (p £ 0.05) higher than Jersey cross (fi). Total solids content of Jersey cross (fi) was significantly (p £ 0.05) higher than Jersey cross (fa). Jersey cross (fi) possessed significantly (p £ 0.05) higher solids not fat content than Jersey cross (fa) and the values were found to be comparable with Jersey colostrum samples. The pH values of colostrum samples of Jersey were seen to be significantly (p £ 0.05) higher than all other sources of colostrum viz Local, Jersey cross (fa) and Jersey cross (fi). Amongst the latter three, the values were found to be comparable. The ash, electrical conductivity and total plate count (TPC) of the colostrum samples of the animal sources under study were found to be possessing comparable values having no significant (p greator than 0.05) difference among themselves whatsoever.


BMJ ◽  
1973 ◽  
Vol 4 (5893) ◽  
pp. 640-643 ◽  
Author(s):  
E. M. Berry ◽  
M. M. Gupta ◽  
S. J. Turner ◽  
R. R. Burns

1957 ◽  
Vol 24 (1) ◽  
pp. 115-120 ◽  
Author(s):  
A. M. El Negoumy

The properties and composition of buffaloes' colostrum have been compared with those of cows' colostrum. The most significant differences found between the two may be summarized as follows:(1) Buffaloes' colostrum was richer in total solids, lactose, total N, globulin N and proteose-peptone N than cows' colostrum.(2) Buffaloes' colostrum had a much wider range of fat content than cows' colostrum. A distinct difference between the two colostrums lay in the fact that while buffaloes' colostrum was definitely poorer in fat content than normal buffaloes' milk, cows' colostrum was richer in fat content than is normal cows' milk.Changes in buffaloes' mammary secretion during the transition period from colostrum to milk.The following is a summary of the most significant trends in the properties and composition of buffaloes' mammary secretion during the transition period:(1) The specific gravity, acidity and chlorine decreased until they reached a normal value at the fifth milking. This compares well with the trends reported in the literature for cows' mammary secretion during the transition period.(2) The pH increased gradually until it reached its normal level before the fifth milking.(3) The highest level of total solids occurred at the first and second milking, and dropped sharply at the third milking to the level normally found in buffaloes' milk.(4) Changes in the lactose content from the second milking onwards were very slight. This contrasts with the known trend during the transition period in cows, when a gradual increase from a low level at the first milking to higher levels at the following milkings is noticeable.(5) The total N, globulin N, albumin N and proteose-peptone N decreased from relatively high levels at the first and second milkings to lower levels at later milkings, and thus closely followed the trend shown by the total solids.Buffaloes' mammary secretion may be considered comparable in its composition to normal buffaloes' milk and suitable for human consumption from 5 to 7 days after parturition.


1954 ◽  
Vol 17 (7) ◽  
pp. 219-221
Author(s):  
J. Babad ◽  
Y. Levin ◽  
N. Sharon

The specific gravity of R S M at various concentrations and temperatures has been studied. A general formula correlating the results has been derived: Temperature correction values for various concentrations as well as simple routine methods for the estimation of total solids content of R S M are described.


1963 ◽  
Vol 39 (1) ◽  
pp. 42-45 ◽  
Author(s):  
Emma Del Carmen Chiaraviglio ◽  
A. V. Wolf ◽  
Phoebe G. Prentiss

2016 ◽  
Vol 45 (2) ◽  
pp. 73-78 ◽  
Author(s):  
MS Uddin ◽  
MR Habib ◽  
MA Islam ◽  
S Afrin ◽  
MH Rashid

The present study was conducted to know the chemical qualities and adulteration of fresh raw milk collected from local markets (Bhangnamari bazaar, Sutiakhali bazaar, Vabokhali bazaar, Shombhuganj bazaar and Mymensingh sadar bazaar) of Mymensingh sadar, Bangladesh. Milk samples were analyzed for chemical parameters (contents of acidity, total solids, solids-not-fat, fat, protein and ash) and adulteration (presence of formalin, sugar or starch). Also, lactometer reading was recorded to monitor the specific gravity of the collected milk samples. Result showed that the specific gravity of milk from different sources differed non-significantly. The total solids, fat and protein contents of all the samples were in normal range except the milk fat content collected from Shombhuganj bazaar (32.66±4.04 g/Kg) and Mymensingh sadar bazaar (30.66±4.51 g/Kg) which had less (p<0.01) than the minimum legal standard of milk fat (35.00 g/Kg). The solids-not-fat content of the milk samples collected from Bhangnamari bazaar (72.93±8.78 g/Kg) and Vabokhali bazaar (79.33±6.81 g/Kg) were less than that from Mymensingh sadar bazaar (95.67±11.72 g/Kg). Developed acidity was detected in the samples from Bhangnamari bazaar (0.180±0.03), Sutiakhali bazaar (0.187±0.04%) and Mymensingh sadar bazaar (0.180±0.02%), while other samples were found to the fresh (0.150-0.157%). All of the adulteration tests showed negative results. The results suggested that though there were some fluctuations in quality among the bazaars regarding the standard of parameters, the raw milk samples were of acceptable quality.Bang. J. Anim. Sci. 2016. 45 (2): 73-78


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