5-hydroxymethylfurfural (5-hmf) is known as an indicator of quality deterioration in a wide range of foods. the current study covered 70 samples taken from domestically produced foods and drinks available on the iranian markets (including honey, jam, fruit cakes tomato paste, ketchup, syrup, fruit juice, canned fruit, uht milk, instant coffee and jelly powder). hmf levels were determined using ...

Field trials were conducted at the Delhi Research Station, Ontario, Canada, on a Fox loamy sand soil during 1987 and 1988 to evaluate the effects of row application of the fumigants Telone II, Telone C-17, Vorlex Plus, and Vorlex Plus CP on the yield and quality of paste tomato (Lycopersicon esculentum Mill. cv. Ferry Morse 6203). The four fumigants were equally effective in controlling the nat...

An amperometric biosensor has been developed for measurement of Umami, or the taste based on the amount of L-glutamate, in tomato foods. The biosensor is based on an enzyme-mediator system in which L-glutamate oxidase is used for biochemical oxidation of L-glutamate and a tetrafulvalene-tetracyanoquinodimethane (TTF-TCNQ) paste, prepared from the mixture of TTF-TCNQ salt, graphite powder, and s...

• Evidence is emerging to support the notion that in response to herbivory, plants undergo changes in their primary metabolism and are able to fine-tune the allocation of new and existing resources and temporarily direct them to storage organs. • We hypothesized that simulated herbivory increases the export of resources out of the affected tissues and increases allocation to roots. We used shor...

introduction thermal processing has a huge impact on the textural attribute of the final food product and texture is a major factor contributing the overall quality of food. ohmic heating is an advanced thermal processing method in which heat is internally generated within foods by passing an alternating electric current through them. ohmic heating can volumetrically heat the entire mass of a f...

Conventional methods often impose difficulties when measuring viscosity of fluids containing particles or fibres, e.g. tomato paste or fruit preparations, mainly due to the small gaps of the viscometer. In order to solve these problems different geometries have been developed, e.g. different mixer systems and wide gap double concentric cylinders. These, however, can not be evaluated assuming co...

After potato, tomato (Solanum lycopersicum) is the world?s second-largest vegetable crop. More than 80% of consumption comes from processed products such as ketchup, juice, pickled tomatoes, sauces, paste, pur?e. Samples mild ketchup two different manufacturers (A and B) were selected for analysis content natural food colors E160a E160d. Using a UV-Vis spectrophotometric method Lambert-Beer law...

Teaching Factory is a concept of production-based teaching process that refers to the standards and procedures applicable in industry, which carried out an atmosphere like what happens industry. One Jember State Polytechnic majoring Agricultural Technology Canning (Canning Factory). The fish canning product produced at Canning, lemuru. raw material for lemuru obtained directly from collectors P...