scholarly journals Relationships between physical and chemical characteristics and calculated metabolizable energy values in barley and oats with highly variable volume weights

1978 ◽  
Vol 50 (3) ◽  
pp. 276-284
Author(s):  
Maija-Liisa Salo

61 samples of barley with a volume weight of 38—75 kg/hl, and 49 oat samples with a volume weight of 40—65kg/hl were analyzed for physical and chemical characteristics. The approximate metabolizable energy (ME) value was calculated from the composition. The physical characteristics varied more, but the starch content less, in barley than in oats. There was also a negative correlation between starch and crude protein, and ether extract level in barley, but not in oats. Therefore the difference between the ME values of the best and the poorest samples was only 12% for barley, but 27 % for oats. Both the starch and the crude protein content predicted the ME value well: R2 of starch was 78—94 %, and that of crude fibre 55—84 %. The volume weight still gave a good indication for barley, but not at all for oats.

The objective of this present study was to investigate the effect of feeding fermented mixture of papaya leaf and seed meal (FERM) on the physical and chemical characteristics of meats of the Indonesian indigenous crossbred chicken (IICC). The study was carried out with 300 day-old IICC. The chicks were randomly distributed to five treatment groups, i.e., CONT (control diet based on corn-soybean- diet), FERMA (diet containing 1% FERM), FERMB (2.5% FERM), FERMC (5% FERM) and FERMD (7.5% FERM). Each treatment group consisted of 6 replicates with 10 IICC in each. At week 8, one chick from each replicate was randomly taken and slaughtered. After being de-feathered and eviscerated, samples from breast and thigh meats were obtained. Results showed that the increased levels of FERM was followed by the increased (P<0.05) pH values, moisture and crude protein content of breast meats of the IICC. Dietary incorporation of FERM especially at the level of 2.5% increased (P<0.05) the content of fat in the breast meat of IICC, while further increased levels of FERM did not alter (P>0.05) the fat content of the IICC breast meat. Dietary treatment did not have any effect (P>0.05) on the lightness (L*) values of breast meat of the IICC. The redness (a*) values were higher (P<0.05) in FERMD breast meat than other. FERM diet resulted in lower (P<0.05) yellowness (b*) values in the IICC breast meat. The pH values and moisture content of thigh meat increased (P<0.05) with the increased level of FERM. The WHC decreased (P<0.05) with the elevated levels of FERM in the diets. There was an increase (P<0.05) in crude protein concentration in FERMA as compared to the other meats. Crude fat and ash concentrations in thigh meat were affected (P<0.05) by the treatments. Dietary treatments had no impact (P>0.05) on L* values of thigh meats. Feeding FERM at 7.5% from diets increased (P<0.05) and decreased (P<0.05) the redness and yellowness of meats. In conclusion, dietary inclusion of FERM especially at the level of 7.5% from diets improved the physical and chemical characteristics of the IICC meats.


2015 ◽  
Vol 35 (03) ◽  
pp. 273 ◽  
Author(s):  
Budi Santoso ◽  
Filli Pratama ◽  
Basuni Hamzah ◽  
Rindit Pambayun

The research aimed to know physical and chemical characteristics of Canna edulis Kerr and Dioscorea hispida Dennst unmodified and modified starch with cross-linking method. This research was divided into two stages. The first stage of the research was characterization of starch from Canna edulis Kerr and Dioscorea hispida Dennst and the second stage of the research was processing of modified starch from Canna edulis Kerr and Dioscorea hispida Dennst through crosslinking by using POCl at the concentration of 0.04%(v/v), 0.08%(v/v), dan 0.12%(v/v). There was no specific researchdesign for the first stage of the research.  The collected data was tabulated. The research design for the second stage was non factorial completely randomized design with five replications. The results showed that C. edulis contained starch content (41.35%) and D. hispida (38.80%). C. edulis starch had amylose content (17.59%) and D. hispida starch 8.92%. The modification of C. edulis starch contained of phosphate (15.74 ppm) and D. hispida 9.54 ppm. The starch granule was found in C. edulis (20-50 μm) and starch granule was in D. hispida (4.23 to 4.52 μm). The physical and chemical characteristics of modified C. edulis and D. hispida starch were not similar to the unmodified starch. The amylose andstarch contents in the modified starch was reduced, on the other hand, the phosphate content was increased, whereas the granule size was unchanged.3Keywords: Canna edulis Kerr, cross-linking, Dioscorea hispida Dennst, phosphate, starch ABSTRAKPenelitian ini bertujuan untuk mengetahui karakteristik fisik dan kimia pati ganyong dan gadung sebelum dan setelah dimodifikasi dengan menggunakan metode ikatan silang (cross linking). Penelitian ini terdiri atas dua tahap. Tahap pertama adalah karakterisasi pati dari umbi ganyong dan umbi gadung. Tahap kedua pembuatan pati termodifikasidari pati ganyong dan gadung melalui ikatan silang dengan menggunakan POCl pada konsentrasi 0,04% (v/v);0,08% (vv); dan 0,12% (v/v). Rancangan penelitian tahap pertama menggunakan tabulasi dan tahap kedua rancangan acak lengkap non faktorial dengan lima kali ulangan. Hasil penelitian menunjukkan bahwa kadar pati umbi ganyongsebesar 41,35% dan 38,80% untuk pati umbi gadung. Kadar amilosa pati ganyong 17,59% dan pati gadung 8,92%. Pati ganyong modifikasi mengandung fosfat sebesar 15,74 ppm sedangkan pati gadung 9,54 ppm. Ukuran granula pati ganyong berkisar 20-50 μm dan pati gadung 4,32-4,25 μm. Kadar pati dan amilosa umbi ganyong dan gadung setelahdimodifikasi mengalami penurunan secara signifikan dengan semakin tinggi konsentrasi POCl 3 sedangkan kadar fosfat, derajat substitusi, dan kadar HCN untuk pati gadung mengalami penurunan.Kata kunci: Fosfat, ganyong, gadung, ikatan silang, pati 3,  


Author(s):  
Siobhan Ward ◽  
E. Owen ◽  
B.S. Capper ◽  
J.F. Wood

There are no published feed-energy standards for growing rabbits. Even nutritional factors that affect intake and digestibility, and consequently performance, are not well documented. Two experiments were carried out, as part of a programme to develop energy feeding standards for growing rabbits. Experiment 1 investigated the effect of physical and chemical characteristics on intake and digestibility of diets. Experiment 2 investigated the effects of level of feeding on digestibility of diets varying in energy density.A 3 x 2 factorial design was used in both experiments, with 20 Individually-fed weaned rabbits per treatment (initial weight approximately 800 g). Diets were pelleted (4 mm die diameter) and were of the same formulation in both experiments. Diets (LH, MB, HH) were formulated to contain different crude fibre levels (Table 1) by varying, the inclusion rates of grass hay - (LH, Low Hay, 273 g/kg; MB, Medium Hay, 556 g/kg and HH, High Hay, 831 g/kg). Diets were formulated to contain the same amounts of crude protein. In Experiment 1 the hay component In diets LHf, MHf and HHf was ground through a 1 mm screen whereas that in diets LHc, MHc and HHc was ground using a 6 mm screen. In Experiment 2, diets LHf, MHf and HHf were fed ad libitum or at 70% of ad libitum Intake.


2021 ◽  
Vol 5 (2) ◽  
pp. 63
Author(s):  
Dwi Eva Nirmagustina

Brown rice has physical and sensory characteristics that are less favorable despite its high content of nutrition and phytochemical. The germination process is one way to improve and increase the acceptance of brown rice. The objective research was to determine germination time and varieties of brown rice on the physical and chemical characteristics of germinated brown rice. The research was conducted in RAL with 2 factors, germination time (24, 48, and 72 hours) and rice varieties (Mentik susu, Ciherang, and Pandan wangi). The data obtained were processed with analysis of variance to determine the effect of treatment on the parameters tested. If the effect is significant, then to determine the difference between treatments, a Tukey test is performed. Germination time of 24, 48, and 72 hours affected the color, germination, weight, dimensions of lenght, width, and thickness, bulk density, hydration capacity and swelling of germinated brown rice var. Mentik susu, Ciherang, and Pandan wangi. Germination time of 24, 48, 72 hours affected the chemical composition of BCG var. Mentik susu, Ciherang, and Pandan wangi. Based on observations of the physical and chemical characteristics of BCG var. Mentik susu, Ciherang, and Pandan wangi, germination time of 48 hours is recommended to do the germination with germination time of 48 hours compared to germination time of 24 and 72 hours.


Food Industry ◽  
2018 ◽  
Vol 3 (4) ◽  
Author(s):  
Nataliia V. Nepovinnykh ◽  
Yuri A. Kodatsky ◽  
Oksana N. Klyukina ◽  
Nataliia M. Ptichkin ◽  
Samira Yeganehzad

2013 ◽  
Vol 39 (6) ◽  
pp. 1089
Author(s):  
Qian ZHANG ◽  
Ming-Cai ZHANG ◽  
Hai-Yan ZHANG ◽  
Wei-Ming TAN ◽  
Zhao-Hu LI ◽  
...  

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