MODIFICATION OF BOSTWICH METHOD TO DETERMINE TOMATO CONCENTRATES CONSISTENCY

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MAZAHERI TEHRANI M.; MORTAZAVI SEYED ALI; SHAHIDI F.; NASIRI MAHALATI MAHDI

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2002 | Volume:9 | Issue:1 Page(s): 153-160

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Information Journal Paper

Title

MODIFICATION OF BOSTWICH METHOD TO DETERMINE TOMATO CONCENTRATES CONSISTENCY

Author(s)

MAZAHERI TEHRANI M. | MORTAZAVI SEYED ALI | SHAHIDI F. | NASIRI MAHALATI MAHDI | Issue Writer Certificate

Keywords

BOSTWICH CONSISTOMETERQ4

TOMATO CONCENTRATEQ4

TOMATO VARIETYQ4

MODIFICATION CONSISTENCY MEASUREMENTQ4

Abstract

Tomato concentrated products were diluted up to 12 percent solids to measure their consistency by BOSTWICH CONSISTOMETER. The evaluation of the consistency of TOMATO CONCENTRATEd with different Brixes showed that the error in consistency measurement of TOMATO CONCENTRATEd by Bostwich method increased as the Brix increased. The studies indicated that the drying rate of insoluble solids and the lacking of reconstituting properties of them were caused error in the measurement of paste consistancy (especially at high Brixes). In this research, the effect of variety, TOMATO CONCENTRATEd Brix and the temperature of consistency measurement were evaluated to determine the error changes in BOSTWICH CONSISTOMETER and to modify it. The results showed that the variety had no effect on the accuracy of consistency measurement by Bostwich method, but Brix and temperature had a very significant effect on the accuracy of this assay and thus the error of BOSTWICH CONSISTOMETER increased, especially at high Brixes. It was concluded that heating of diluted TOMATO CONCENTRATEd (up to 45 Co) and then cooling it can decrease the error of consistency measurement considerably. Also, the consistency can be estimated accurately by using the regration between Brix, temperature and Bostwich consistency (R2=0.94).

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APA: Copy

MAZAHERI TEHRANI, M., MORTAZAVI, SEYED ALI, SHAHIDI, F., & NASIRI MAHALATI, MAHDI. (2002). MODIFICATION OF BOSTWICH METHOD TO DETERMINE TOMATO CONCENTRATES CONSISTENCY. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 9(1), 153-160. SID. https://sid.ir/paper/9623/en

Vancouver: Copy

MAZAHERI TEHRANI M., MORTAZAVI SEYED ALI, SHAHIDI F., NASIRI MAHALATI MAHDI. MODIFICATION OF BOSTWICH METHOD TO DETERMINE TOMATO CONCENTRATES CONSISTENCY. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2002;9(1):153-160. Available from: https://sid.ir/paper/9623/en

IEEE: Copy

M. MAZAHERI TEHRANI, SEYED ALI MORTAZAVI, F. SHAHIDI, and MAHDI NASIRI MAHALATI, “MODIFICATION OF BOSTWICH METHOD TO DETERMINE TOMATO CONCENTRATES CONSISTENCY,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 9, no. 1, pp. 153–160, 2002, [Online]. Available: https://sid.ir/paper/9623/en

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