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Explanation and Evaluation of Mouthfeel www.rheologysolutions.com and Evaluation and of Mouthfeel of Explanation for the Food Industries Food the for Rheology Solutions Solutions Rheology i ppn eost crtru ia m l• e is t n t em ts sa p • le e op l 1 Page r t s s at ic a u anu al li p d re QC p RHEO253 a st o s co sys e te Mouthfeel of Evaluation and Explanation - Tips Top Tim’s n s rt rv nt ms fo d a • ic rol r polyme sele t e • rs • polymer testing instruments • repairs & servic rvs e or tra e • rheometers • rub ica m ga ining ber & el en o pe nis cou astom d rg ra ati rses • er te se a t on twin ns laboratory • carbon black testsintig r nis ur dedic screw extru n • applicatio nginpstrum vi atioe c ated to ders • viscocmhaeterracterisatio ro ents ce n don the science of materials s • watoiorknshloabpsor•atory • carbon black testing in du • co o edtricoa ation • applic material te strume cts ntr rg l t•ed to the terials characteris sting in nts • • act a tra science of ma strume co se te nis ining nts • ntra m sti at courses opt ct ina ng ion • twin screw extruders • viscometers • workshops • ical tes rs • de material testing inst QC tin • ind dica ruments sys g • so us ted t • opt tem in li tr o the ical Q s d ds y s science o C fo us t p f materials chara sys r try es ec cterisation • applications labora tem po s t if tory • carbo s ly p in ic n black for m ec g s testin p e if • em g in ol rs ic s strum ym• s u in en epo em r a ts • rs•l fa r c ypm in c a on oe a e n tra lry r s d c mt a c w t t ee n i es sr d e o ti ti te n r ng n s w c g ti o e • i n r in n g k & d st i s u r n h t st u s h r m t o y ru pe sp e m r e n pm c t e r i s n o fi t o c • s g s rr e r • a m e a r v i p e m n i a p t a s i y r r a s i a r e n s d & q &u w s e i p s o r r v m ki cs e e h o • p r h e Tim’s Top Tips - Explanation and Evaluation of Mouthfeel Company Profile Contact Details Rheology Solutions Pty Ltd is a specialist sales and service Rheology Solutions Pty Ltd organisation dedicated to the science of materials Address: 15 -19 Hillside Street, Bacchus Marsh, Victoria, 3340 characterisation and are the exclusive Australian distributor for PO Box 754, Bacchus Marsh, Victoria, 3340 the brand names HAAKE, NESLAB, PRISM and CAHN from Phone: 03 5367 7477 Thermo Fisher Scientific, Optical Control Systems, Schleibinger Fax: 03 5367 6477 Gerate and Marimex Industries Corporation range of equipment Email: [email protected] and instruments, and they also distribute the Shimadzu range of Website: www.rheologysolutions.com tensile testers and texture analysers. Rheology Solutions recognises the importance of specialisation Disclaimer and dedication to a specific science and as such provides full technical support and service throughout Australia. The company The information contained in this report is not intended for direct goal is to integrate industry experience and materials use as a tool for process development. It is a guide only. This characterisation techniques to provide practical solutions for document remains the property of Rheology Solutions Pty Ltd, customers. and may not be reproduced or altered in any way without the written permission of the owners. Rheology Solutions has an established applications laboratory equipped with a comprehensive range of instruments to meet the Written by Dr. T. Kealy requirements of material characterisation. Specialist contract Technical Manager testing services are also available and contracts can be tailored Rheology Solutions Pty Ltd to suit discrete tests or protracted testing requirements involving a series of tests over a period of weeks or months. © Rheology Solutions Pty Ltd 2006 A range of seminars and application specific workshops as well as product launches and demonstrations are provided throughout Australia. The seminars and workshops are designed to meet the needs of specific customer and industry applications. Rheology Solutions has its head office in Victoria and works with a team of specialist sales and factory trained service personnel throughout Australia. The combined experience of this team ensures that Rheology Solutions are able to provide their customers with access to the products to ensure that the right technical support and service is provided. Page 2 (4) [email protected] p k se ent p e r uipm o rh o eq & he • w tsy rs ics vmi i rvrk d rra a eo n gg p s oo e & w a r r s Tim’s Top Tips - Explanation andr Evaluation of rMouthfeelmp r d e • i n a h p s a n t o t p a i h n e r & s r a m k e e r • n e m i s c o s n u t m c e w r n i i t e e f c s s i d s n m c n i c e a u i e c r f r g t i p a s c s f a n Tim’s Top Tips: Rheology Solutions for the Food Industriesr i n e n t i y i u s p r s g s t m e t n s • e i y r s r t u t g e s d c s n i e u n i f mt i t i Explanation and Evaluation of Mouthfeelry d s c l • e n e e o i t g p mp • s s y n l • i d i y g t o s l r r n s p o t i e e s s t t • s u s m t • e Key Words: Mouthfeel, rheology, rotational, extensional, universal tester,d taster y panel, t l c e s n a r i o t r m c a p t • solid, semi-solid, liquid, viscosity, viscometer, rheometer, viscoelastic, force andy displacementa n l r n i r g o t o o m f n p n c i measurements. e o t r s s • s c o m e f s • • t t e s s t n t s t s t c e c m y n a e s u m r t e d t s About The Author Introduction u C r o n y m t r s Q o u s p r c l n t C i a s g • c Q n Tim has a background in i Often the food industry mustg overcome problems related to (and n i s i t l t n t i a p g s n engineering and specifically in t often dominated by) the flow propertiesc of their product, though o e i s n e i t t e t • rheology, with a B.Eng and Ph.D. in t m p r the relationship between these properties and s production s u o e e k t r t Chemical Engineering and has held c t n • related issues are not alwaysm immediately apparent. It is the s a k e l o s n c t i t postdoctoral research positions in b purpose of this series of articles, “Rheologym solutions for the a s l n u a g n l e b engineering rheology. Tim's r o n t food industries”, to help illuminatee the issues faced by the i s m b n t r s n u research has continued for the last o & i a industry, how they relate to the flow propertiesr of the problem e b t r c t r g s seven years and recent interests e a • k n materials and how they can be successfullyn measured and b i c i c t y b and publications include the a r s • l g controlled with a view to betteru processing. e o r b n t y t application of rheology and rheometry to mineral, food, polymer i r t a l • n r s o a o t i s o and surface coatings systems. His current position encompasses e r r t a b b r r e e l a t t a l o the managment of customer contract testing and also includes a a Definitions e c i b s r a m m n • e customer focussed education and training. Additionally he is l t o o • y i s a e r t n available to provide technical input for existing or proposed s h a o Mouthfeel is the textural part of the experiencem of the consumer r o t p c i i a l t o • materials characterisation systems for both laboratory and • r a p when chewing and swallowing food. The foods canh be liquid, s o c s e p i p b c l production.
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