Lactic beverage (sample 1), with 70% of milk and 30% of cheese whey, and fermented milk (sample 2), with 100% of milk, added of Lactobacillus acidophilus La-5, Bifidobacterium Bb-12 and Streptococcus thermophilus, were evaluated about physico-chemical composition, enumeration of viable cells of probiotic bacteria and rheological measurements, in the temperatures of 2.0 ± 0.1 °C; 4.0 ± 0.1 °C; 6.0 ± 0.1 °C and 8.0 ± 0.1 °C. The whey addition resulted in lactic beverage with lesser contents (p < 0.05) of total solids (18.08 ± 0.08% m/m), proteins (2,23 ± 0.10% m/m), lipids (1.91 ± 0.02% m/m) and caloric value (79.27 ± 0.37 Kcal/ 100 g), when compared with those presented in fermented milk, respectively. While, the contents of ashes, carbohydrates, the acidity and pH of the lactic beverage and fermented milk weren't different (p > 0.05). According to Brazilian legislation the lactic beverage and fermented milk were considered probiotic (> 106 CFU/mL). The two samples (1 and 2) had behaved as pseudoplastic fluids, confirming the non- Newtonian behavior and had presented thixotropy. The values for the activation energy were equal to 1.89 Kcal.mol-1, for the lactic beverage, and 1.84 Kcal.mol-1, for the fermented milk, indicating that the activation energy was not influenced by the amount of whey used, as well as the temperature also did not influence on the apparent viscosity of samples 1 and 2.291103116Abu-Jdayil, B., Mohameed, H., Experimental and modelling studies of the flow properties of concentrated yogurt as affected by the storage time (2002) Journal of Food Engineering, 52 (4), pp. 359-365. , DOI 10.1016/S0260-8774(01)00127-3, PII S0260877401001273Afonso, I.M., Hes, L., Maia, J.M., Melo, L.F., Heat transfer and rheology of stirred yoghurt during cooling in plate heat exchangers (2003) Journal of Food Engineering, 57 (2), pp. 179-187. , EssexAfonso, I.M., Maia, J.M., Rheological monitoring of structure evolution and development in stirred yoghurt (1999) Journal of Food Engineering, 42 (4), pp. 183-190. , DOI 10.1016/S0260-8774(99)00118-1Aichinger, P.-A., Michel, M., Servais, C., Dillmann, M.-L., Rouvet, M., D'Amico, N., Zink, R., Horne, D.S., Fermentation of a skim milk concentrate with Streptococcus thermophilus and chymosin: Structure, viscoelasticity and syneresis of gels (2003) Colloids and Surfaces B: Biointerfaces, 31 (1-4), pp. 243-255. , DOI 10.1016/S0927-7765(03)00144-9Al-Kadamany, E., Khattar, M., Haddad, T., Toufeili, I., Estimation of shelf-life of concentrated yogurt by monitoring selected microbiological and physicochemical changes during storage (2003) LWT - Food Science and Technology, 36 (4), pp. 407-414. , DOI 10.1016/S0023-6438(03)00018-5De Almeida, K.E., Bonassi, I.A., De Roça, R.O., Avaliação sensorial de bebida láctea preparada com diferentes teores de soro utilizando-se dois tipos de cultura lática (2000) Revista Do Instituto de Laticínios Cândido Tostes, 55 (315), pp. 7-13Características físicas e químicas de bebidas lácteas fermentadas e preparadas com soro de queijo minas frescal (2001) Ciência e Tecnologia de Alimentos, 21 (2), pp. 187-192. , Campinas(2005) Official Methods of Analysis of the Association Analytical Chemists, , ASSOCIATION OF OFFICIAL ANALYTICAL CHEMISTS - AOAC. 18.ed. Maryland: AOACAwadhwal, N.K., Singh, C.P., A Rheological model for milk products (1985) Journal of Food Science, 50 (6), pp. 1611-1614. , ChicagoAwaisheh, S.S., Haddadin, M.S.Y., Robinson, R.K., Incorporation of selected nutraceuticals and probiotic bacteria into a fermented milk (2005) International Dairy Journal, 15 (11), pp. 1184-1190. , DOI 10.1016/j.idairyj.2004.11.003, PII S0958694604002559Barreto, P.L.M., Roeder, J., Crespo, J.S., Maciel, G.R., Terenzi, H., Pires, A.T.N., Soldi, V., Effect of concentration, temperature and plasticizer content on rheological properties of sodium caseinate and sodium caseinate/sorbitol solutions and glass transition of their films (2003) Food Chemistry, 82 (3), pp. 425-431. , DOI 10.1016/S0308-8146(03)00006-2Bonczar, G., Wszolek, M., Siuta, A., The effects of certain factors on the properties of yoghurt made from ewe's milk (2002) Food Chemistry, 79 (1), pp. 85-91. , DOI 10.1016/S0308-8146(02)00182-6, PII S0308814602001826De Angelis, R.C., (1977) Fisiologia da Nutrição: Fundamentos Para Nutrição e Desnutrição, 1. , São Paulo: EDART/EDUSPDonkor, O.N., Henriksson, A., Vasiljevic, T., Shah, N.P., Effect of acidification on the activity of probiotics in yoghurt during cold storage (2006) International Dairy Journal, 16 (10), pp. 1181-1189. , DOI 10.1016/j.idairyj.2005.10.008, PII S0958694605002347Dunne, C., O'mahony, L., Murphy, L., Thornton, G., Morrisey, D., O'halloran, S., Feeney, M., Collins, J.K., In vitro selection criteria for probiotic bacteria of human origin: Correlation with in vivo findings (2001) American Journal of Clinical Nutrition, 73 (2), pp. 386-392. , New YorkAbd El-Gawad, I.A., El-Sayed, E.M., Hafez, S.A., El-Zeini, H.M., Saleh, F.A., The hypocholesterolaemic effect of milk yoghurt and soy-yoghurt containing bifidobacteria in rats fed on a cholesterol-enriched diet (2005) International Dairy Journal, 15 (1), pp. 37-44. , DOI 10.1016/j.idairyj.2004.06.001, PII S0958694604001293Faria, C.P., Benedet, H.D., Guerroue, J.L., Análise de leite de búfala fermentado por Lactobacillus casei e suplementado com (2006) Bifidobacterium Longum. Semina: Ciências Agrárias, 27 (3), pp. 407-414. , LondrinaFarnsworth, J.P., Li, J., Hendricks, G.M., Guo, M.R., Effects of transglutaminase treatment on functional properties and probiotic culture survivability of goat milk yogurt (2006) Small Ruminant Research, 65 (1-2), pp. 113-121. , DOI 10.1016/j.smallrumres.2005.05.036, PII S0921448805002117Fioramonti, J., Theodorou, V., Bueno, L., Probiotics: What are they? What are their effects on gut physiology? (2003) Best Practice & Research Clinical Gastroenterology, 17 (5), pp. 711-724. , Baillière Tindall(2001) Evaluation of Health and Nutritional Properties of Probiotics in Food Including Powder Milk with Live Lactic Acid Bacteria, , ftp://ftp.fao.org/docrep/fao/meeting/009/y6398e.pdf, FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS - FAOWORLD HEALTH ORGANIZATION - WHO. Córdoba: FAO/ WHO. Disponível em Acesso em: 12 mar. 2007Gomes, A.M.P., Malcata, F.X., Bifidobacterium spp. and Lactobacillus acidophilus: Biological, biochemical, technological and therapeutical properties relevant for use as probiotics (1999) Trends in Food Science and Technology, 10 (4-5), pp. 139-157. , DOI 10.1016/S0924-2244(99)00033-3, PII S0924224499000333Gonzalez-Martinez, C., Becerra, M., Chafer, M., Albors, A., Carot, J.M., Chiralt, A., Influence of substituting milk powder for whey powder on yoghurt quality (2002) Trends in Food Science and Technology, 13 (9-10), pp. 334-340. , DOI 10.1016/S0924-2244(02)00160-7, PII S0924224402001607Guler-Akin, M.B., Akin, M.S., Effects of cysteine and different incubation temperatures on the microflora, chemical composition and sensory characteristics of bio-yogurt made from goat's milk (2007) Food Chemistry, 100 (2), pp. 788-793. , DOI 10.1016/j.foodchem.2005.10.038, PII S0308814605009465Horne, D.S., Casein interactions: Casting light on the black boxes, the structure in dairy products (1998) International Dairy Journal, 8 (3), pp. 171-177. , DOI 10.1016/S0958-6946(98)00040-5, PII S0958694698000405(2005) Normas Analíticas Do Instituto Adolfo Lutz, , INSTITUTO ADOLFO LUTZ - IAL. 4. ed. São Paulo: IALKailasapathy, K., Survival of free and encapsulated probiotic bacteria and their effect on the sensory properties of yoghurt (2006) LWT - Food Science and Technology, 39 (10), pp. 1221-1227. , DOI 10.1016/j.lwt.2005.07.013, PII S0023643805001660Kailasapathy, K., Supriadi, D., Effect of whey protein concentrate on the survival of Lactobacillus acidophilus in lactose hydrolysed yoghurt during refrigerated storage (1996) Milchwissenschaft, 51 (10), pp. 565-568Kastner, S., Perreten, V., Bleuler, H., Hugenschmidt, G., Lacroix, C., Meile, L., Antibiotic susceptibility patterns and resistance genes of starter cultures and probiotic bacteria used in food (2006) Systematic and Applied Microbiology, 29 (2), pp. 145-155. , DOI 10.1016/j.syapm.2005.07.009, PII S0723202005001517Keogh, M.K., O'Kennedy, B.T., Rheology of stirred yogurt as affected by added mill fat, protein and hydrocolloids (1998) Journal of Food Science, 63 (1), pp. 108-112Kristo, E., Biliaderis, C.G., Tzanetakis, N., Modelling of rheological, microbiological and acidification properties of a fermented milk product containing a probiotic strain of Lactobacillus paracasei (2003) International Dairy Journal, 13 (7), pp. 517-528. , DOI 10.1016/S0958-6946(03)00074-8Lerayer, A.L.S., Miguel, A.M.R.D.O., Guedes, A.L.D.A., De Carvalho, A.F., Itajdenwurcel, J.R., Da Fonseca, L.M., Mosquim, M.C.A., De Porfírio, T.A., (2002) Nova Legislação Comentada de Produtos Lácteos : Revisada e Ampliada, 1. , Sãlo Paulo: Revista Indústria de AlimentosLin, W.H., Hwang, C.F., Chen, L.W., Tsen, H.Y., Viable counts, characteristic evaluation for commercial lactic acid bacteria products (2006) Food Microbiology, 23 (1), pp. 74-81. , LondonLizarraga, M.S., Piante Vicin, D.De., Gonzalez, R., Rubiolo, A., Santiago, L.G., Rheological behaviour of whey protein concentrate and l-carrageenan aqueous mixtures (2006) Food Hydrocolloids, 20 (5), pp. 740-748. , DOI 10.1016/j.foodhyd.2005.07.007, PII S0268005X05001608Lourens-Hattingh, A., Viljoen, B.C., Yogurt as probiotic carrier food (2001) International Dairy Journal, 11 (1-2), pp. 1-17. , DOI 10.1016/S0958-6946(01)00036-X, PII S095869460100036XLucey, J.A., Formation and physical properties of milk protein gels (2002) Journal of Dairy Science, 85 (2), pp. 281-294Lucey, J.A., Munro, P.A., Singh, H., Effects of heat treatment and whey protein addition on the rheological properties and structure of acid skim milk gels (1999) International Dairy Journal, 9 (3-6), pp. 275-279. , DOI 10.1016/S0958-6946(99)00074-6, PII S0958694699000746Lucey, J.A., Singh, H., Formation and physical properties of acid milk gels: A review (1998) Food Research International, 30 (7), pp. 529-542. , BarkingMagenis, R.B., Prudêncio, E.S., Amboni, R.D.M.C., Cerqueira Jr., N.G., Oliveira, R.V.B., Soldi, V., Benedet, H.D., Compositional and physical properties of yogurts manufactured from milk and whey cheese concentrated by ultrafiltration (2006) International Journal of Food Science and Technology, 41 (5), pp. 560-568. , OxfordMaragkoudakis, P.A., Miaris, C., Rojez, P., Manalis, N., Magkanari, F., Kalantzopoulos, G., Tsakalidou, E., Production of traditional Greek yoghurt using Lactobacillus strains with probiotic potential as starter adjuncts (2006) International Dairy Journal, 16 (1), pp. 52-60. , DOI 10.1016/j.idairyj.2004.12.013, PII S0958694605000312Martín-Diana, A.B., Janer, C., Peláez Requena, C.T., Development of a fermented goat's milk containing probiotic bacteria (2003) International Dairy Journal, 13 (10), pp. 827-833. , BarkingMartínez-Villaluenga, C., Frías, J., Gómez, R., Vidal-Valverde, C., Influence of addition of raffinose family oligosaccharides on probiotic survival in fermented milk during refrigerated storage (2006) International Dairy Journal, 16 (7), pp. 768-774. , BarkingMoreira, M., Abraham, A., De Antoni, G., Technological properties of milks fermented with thermophilic lactic acid bacteria at suboptimal temperature (2000) Journal of Dairy Science, 83 (3), pp. 395-400. , ChampaignMoreira, S.R., Schwan, R.F., Carvalho, E.P., Ferreira, C., Análise microbiológica e química de iogurtes comercializados em Lavras-MG (1999) Ciência e Tecnologia de Alimentos, 19 (1), pp. 147-152. , CampinasMullineux, G., Simmons, M.J.H., Effects of processing on shear rate of yoghurt (2007) Journal of Food Engineering, 79 (3), pp. 850-857. , DOI 10.1016/j.jfoodeng.2006.03.005, PII S0260877406002433Musaiger, A.O., Al-Saad, J.A., Al-Hooti, D.S., Khunji, Z.A., Chemical composition of fermented dairy products consumed in Bahrain (1998) Food Chemistry, 61 (1-2), pp. 49-52. , DOI 10.1016/S0308-8146(97)00129-5, PII S0308814697001295O'Donnell, H.J., Butler, F., Time-dependent viscosity of stirred yogurt. Part II: Tube flow (2002) Journal of Food Engineering, 51 (3), pp. 255-261. , DOI 10.1016/S0260-8774(01)00065-6, PII S0260877401000656Oliveira, M.N., Damin, M.R., Efeito do teor de sólidos e da concentração de sacarose na acidificação firmeza e viabilidade de bactérias do iogurte e probióticas em leite fermentado (2003) Ciência e Tecnologia de Alimentos, 23 (1), pp. 172-176. , CampinasPenna, A.L.B., Sivieri, K., Oliveira, M.N., Relation between quality and rheological properties of lactic beverages (2001) Journal of Food Engineering, 49 (1), pp. 7-13. , DOI 10.1016/S0260-8774(00)00179-5, PII S0260877400001795Pintado, M.E., MacEdo, A.C., Maleata, F.X., Review: Technology, chemistry and microbiology of whey cheeses (2001) Food Science Technology International, 7 (2), pp. 105-116. , LondonVizoso Pinto, M.G., Franz, C.M.A.P., Schillinger, U., Holzapfel, W.H., Lactobacillus spp. with in vitro probiotic properties from human faeces and traditional fermented products (2006) International Journal of Food Microbiology, 109 (3), pp. 205-214. , DOI 10.1016/j.ijfoodmicro.2006.01.029, PII S0168160506000821Rodrigues, L.R., Teixeira, J.A., Oliveira, R., Low-cost fermentative medium for biosurfactant production by probiotic bacteria (2006) Biochemical Engineering Journal, 32 (3), pp. 135-142. , DOI 10.1016/j.bej.2006.09.012, PII S1369703X06002592Schramm, G., (2006) Reologia e Reometria: Fundamentos Teóricos e Práticos, , São Paulo: ArtliberShah, N.P., Probiotic bacteria: Selective enumeration and survival in dairy foods (2000) Journal of Dairy Science, 83 (4), pp. 894-907. , ChampaignShaker, R.R., Jumah, R.Y., Abu-Jdayil, B., Rheological properties of plain yogurt during coagulation process: Impact of fat content and preheat treatment of milk (2000) Journal of Food Engineering, 44 (3), pp. 175-180. , DOI 10.1016/S0260-8774(00)00022-4Shoemaker, C.F., Figoni, P.A., Time-dependent rheological behavior of foods (1984) Food Technology, 38, pp. 110-112. , ChicagoSilva, F.C., Guimarãles, D.H.P., Gasparetto, C.A., Reologia do suco de acerola: efeitos da concentração e temperatura. (2005) Ciência e Tecnologia de Alimentos, 25 (1), pp. 121-126. , CampinasSinha, R., Radha, C., Prakash, J., Kaul, P., Whey protein hydrolysate: Functional properties, nutritional quality and utilization in beverage formulation (2007) Food Chemistry, 101 (4), pp. 1484-1491. , DOI 10.1016/j.foodchem.2006.04.021, PII S0308814606003050Siso, M.I.G., The biotechnological utilization of cheese whey: A review (1996) Bioresource Technology, 57 (1), pp. 1-11. , EssexSodini, I., Lucas, A., Tissier, J.P., Corrieu, G., Physical properties and microstructure of yoghurts supplemented with milk protein hydrolysates (2005) International Dairy Journal, 15 (1), pp. 29-35. , DOI 10.1016/j.idairyj.2004.05.006, PII S0958694604001244(2001) Statistica Data Analysis System Version 6.0, , STATSOFT INC. Tulsa: Statsoft IncTeo, C.T., Munro, P.A., Singh, H., Time dependence of rheological breakdown and recovery of heat precipitated whey protein suspensions (2000) Milchwissenschaft, 55, pp. 29-32. , MunchenThamer, K.G., Penna, A.L.B., Efeito do teor de soro açúcar e de frutooligossacarí deos sobre a população de bactérias láticas probióticas em bebidas fermentadas (2005) Revista Brasileira de Ciências Farmacêuticas, 41 (3), pp. 393-400. , São PauloVelez-Ruiz, J.F., Barbosa-Canovas, G.V., Rheological Properties of Concentrated Milk as a Function of Concentration, Temperature and Storage Time (1998) Journal of Food Engineering, 35 (2), pp. 177-190. , PII S0260877498000193Vinderola, C.G., Bailo, N., Reinheimer, J.A., Survival of probiotic microflora in Argentinian yoghurts during refrigerated storage (2000) Food Research International, 33 (2), pp. 97-102. , DOI 10.1016/S0963-9969(00)00011-9, PII S0963996900000119Vinderola, C.G., Reinheimer, J.A., Enumeration of Lactobacillus casei in the presence of L. acidophilus, bifdobacteria and lactic starter bacteria in fermented dairy products (2000) International Dairy Journal, 10 (4), pp. 271-275. , BarkingYanes, M., Duran, L., Costell, E., Effect of hydrocolloid type and concentration on flow behaviour and sensory properties of milk beverages model systems (2002) Food Hydrocolloids, 16 (6), pp. 605-611. , DOI 10.1016/S0268-005X(02)00023-1, PII S0268005X02000231Yazici, F., Akgun, A., Effect of some protein based fat replacers on physical, chemical, textural, and sensory properties of strained yoghurt (2004) Journal of Food Engineering, 62 (3), pp. 245-254. , Essex