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Search Results: 1 - 10 of 1149 matches for " sugarcane juice "
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Impurezas fibrosas da cana-de-a?úcar e parametros tecnológicos do caldo extraído
Bovi, Roberto;Serra, Gil Eduardo;
Scientia Agricola , 1999, DOI: 10.1590/S0103-90161999000400016
Abstract: the objective was to observe the effect of the presence of green leaves and dry leaves on technological parameters of sugarcane juice, related to a control treatment with the addition of fiber extracted from the stalks. the experiment was based on the addition of known quantities of fibrous sources, in order to formulate samples with absolute increases of 0.25; 0.50 and 0.75 percentual points over the fiber content of the sugarcane control tretment. the green leaves caused a reduction of the brix, pol and juice purity, and an increase on the juice content of reducing sugars and ash. these results, statiscally significant at the level of 1% of probability, were expressed by linear regression equations and correlation coeficients. the presence of dry leaves extracted from their stalks as fiber addition, did not induce alterations in the juice.
Efeitos do processamento térmico e da radia??o gama na conserva??o de caldo de cana puro e adicionado de suco de frutas
Oliveira, Aline Cristine Garcia de;Spoto, Marta Helena Fillet;Canniatti-Brazaca, Solange Guidolin;Sousa, Cristina Paiva de;Gallo, Claudio Rosa;
Ciência e Tecnologia de Alimentos , 2007, DOI: 10.1590/S0101-20612007000400029
Abstract: sugarcane juice is a very well-known and popular beverage in brazil, and provided it is properly exploited, it has a high market potential. the aim of this research was to evaluate the physicochemical, microbiological and sensory stability of pure sugarcane juice and mixed with fresh lemon and pineapple juice, subjected to a heat treatment (70 °c/25 min) and/or gamma radiation (2.5 kgy) and stored in high density polyethylene bottles. the data were evaluated by variance analysis and their mean values compared by tukey's test. processing of the sugarcane juice reduced the microorganism load without significantly altering the physicochemical composition, aroma and flavor of the beverages in comparison with the control. luminosity was higher in the product subjected to the heat treatment combined with gamma radiation than that resulting from the other treatments. the polyphenol oxidase activity in the processed beverages was significantly lower than in the control. the addition of fruit juice to the sugarcane juice did not modify the latter's physicochemical composition. however, the addition of 10% pineapple juice to the sugarcane juice increased the manganese and reduced sugars content when compared with pure sugarcane juice and with sugarcane juice mixed with 4% lemon juice.
Comparative Growth, Yield and Juice Quality of Different Sugarcane Cultivars
M. Maqsood,Manzoor Hussain,M.T. Mahmood,Shahid Ibni Zamir
Pakistan Journal of Biological Sciences , 2000,
Abstract: Not Available
High Density Solvent Based Dispersive Liquid-Liquid Microextraction Technique for Simultaneous and Selective Extraction of Multiclass Pesticide Residues in Water and Sugarcane Juice Samples  [PDF]
Teshome Tolcha, Negussie Megersa
American Journal of Analytical Chemistry (AJAC) , 2018, DOI: 10.4236/ajac.2018.94018
Abstract: In this study, a miniaturized analytical technique based on high density solvent based dispersive liquid-liquid microextraction (HD-DLLME) was developed for extraction of trace residues of multiclass pesticides including three striazine herbicides, two organophosphate insecticides and two organochlorine fungicides from environmental water and sugarcane juice samples. The analytical method was validated and found to offer good linearity: R2 ≥ 0.991; repeatability varied from 0.73% - 5.28%; reproducibility varied from 1.14% - 8.74% and limit of detection ranged from 0.005 to 0.02 μg/L. Moreover, accuracy of the optimized method was evaluated and the recovery was varied from 80.39% - 114.05%. Analytical applications of this method to environmental waters and sugarcane juice samples indicate the presence of trace residues of ametryn in the lake water and sugarcane juice samples. Atrazine and ametryn were also detected in irrigation water.
Influencia de compuestos azúcares y no azúcares en la calidad industrial de ca?a de azúcar en Tucumán (R. Argentina): Parte 1: ca?a limpia y despuntada
Zossi,B. Silvia; Cárdenas,Gerónimo J.; Sorol,Natalia; Sastre,Marcos;
Revista industrial y agr?-cola de Tucum??n , 2010,
Abstract: the concentration of sugar and nonsugar compounds, especially those which play a part in colour formation and others which affect direct white sugar manufacturing process, was studied in the four commercial cane varieties most widely grown in tucumán (argentine republic): tuccp 77-42, lcp 85-384, cp 65-357 and ra 87-3. trials with clean cane were conducted during the 2004-2007 harvests. analyzed parameters were: juice extraction, brix %, pol % in juice and cane, sucrose and sugar recovery. inorganic nonsugar compounds, such as ash, phosphate and silica, as well as organic ones, such as fibre, starch, anthocyanin and phenolic compounds, amino nitrogen, cis and trans-aconitic acids, indicator value and colour, were studied. results showed that lcp 85-384 variety had the best factory performance to produce direct white sugar because of its high sucrose and low nonsugar component contents. second position corresponded to ra 87-3 variety, followed by cp 65-357 and tuccp 77-42.
ácidos organicos de caldo de três variedades de cana-de-a?úcar (Saccharum spp) em quatro estádios de maturidade
Gutierrez, L.E.;Ferrari, S.E.;Orelli Jr, A.A.;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1989, DOI: 10.1590/S0071-12761989000100002
Abstract: levels of trans-aconitic, malic, malonic and succinic acids were measured in sugarcane juice from three varieties in four maturity stages. trans-aconitic acid represented about 84% of the total organic acids analysed in sugarcane juice followed by malic acid with 14%. oxalic, glutaric, alpha-ketoglutaric and citric acids were found in levels lower than 1% of total organic acids. the content of trans-aconitic, malic and succinic acids decreased with the stage of maturity while malonic acid increased. no significant differences were observed among the varieties studied in relation to trans-aconitic acid content.
Efeito da aplica??o da vinha?a como fertilizante sobre os teores de ácido trans-aconítico de caldo de cana-de-a?úcar (Saccharum spp)
Gutierrez, L.E.;Ferrari, S.E.;Gerald, L.T.S.;Orelli Jr, A.A.;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1988, DOI: 10.1590/S0071-12761988000100029
Abstract: sugarcane juice from na 56-79 variety at four maturity stages (4, 6, 8 and 12 months) fertilized with vinasse was analysed for potassium and trans-aconitic acid content. with vinasse fertilization there was a significant reduction in total reducing sugars and an increase in potassium and trans-aconitic acid content of sugarcane juice. a significant positive correlation was observed between trans-aconitic acid production and potassium content. trans-aconitic acid content was inversely related to the plant maturity.
Desgaste en acero de bajo carbono debido a la acción de bagazo limpio o contaminado con sílice y jugo de ca?a
Aguilar-Castro,Yesid; Casanova-García,Fernando; Victoria-Prado,Renzo; Aguirre-Guerrero,Diego; Uquillas-Restrepo,Beatriz;
Ingeniería y Universidad , 2011,
Abstract: this paper presents a study carried out to determine the effect of mineral extraneous matter and sugarcane juice on the wear of sugar cane rollers which get in contact with bagasse. a prototype based on the astm g-65 standard machine, whose low carbon steel is worn by sliding it against bagasse, was designed and built. tests with and without juice in the bagasse were carried out. additionally, the level of mineral extraneous matter was varied. silica sized between 0.212 and 0.300 mm was used as mineral extraneous matter. wear was measured in terms of the weight loss shown by the specimens. scanning electron microscopy was used to analyze worn surfaces. it was found that wear is higher with juice, which causes steel to corrode. this also happens with the presence of mineral extraneous matter. the main wear mechanism observed on the worn surfaces was plastic microdeformation and micro-cutting due to the silica grains.
Avalia??o da qualidade de caldo de cana envasado a quente e por sistema asséptico
Silva, Karin Samorano da;Faria, José de Assis Fonseca;
Ciência e Tecnologia de Alimentos , 2006, DOI: 10.1590/S0101-20612006000400007
Abstract: the objective of this work is to evaluate two thermal processes in order to obtain sugarcane (sacharum ssp.) juice stable at room temperature in glass bottles. an experimental methodology was applied to obtain the best combination between ph and °brix based on the sensory results. there was a tendency for a better sensory acceptance for ph > 4.0 and °brix > 15. two thermal processes were applied to sterilize the juice. firstly, the juice was submitted to 141 °c /10 s, and then aseptically filled in glass bottles previously sterilized. in the second process, the juice was submitted to 110 °c /10 s and filled into glass bottles at 90 ± 5 °c. physical-chemical changes, microbiological counts and sensory acceptance were evaluated during the storage at room temperature. the shelf life of aseptically processed juice was 30 days and 60 days for the hot filled juice based on the sensory evaluation. these results indicated that the hot fill process was more efficient for sugarcane juice preservation in terms of sensory acceptance and physical-chemical changes, probably because of the thermal inactivation of the enzymes.
Effects of Water-Logging on Juice Quality and Yield of Sugarcane
M. Fida Hasan,M.R. Alam,M.A. Jabber,M.K. Begum
Pakistan Journal of Biological Sciences , 2003,
Abstract: Chemical quality and yield performance were studied in six new sugarcane genotypes at normal and water-logging condition. The highest chemical indices, Brix % (22.20) and pol % (20.53) were found in January’ 2002 in I-93/93 and I-110/93 respectively and the lowest in I-39/94 (Brix %: 14.93; pol %: 12.52) at water-logged cultivated cane in all months. The highest of purity % (95.79) and recovery % (13.05) were found in I-110/93 in the month December 2001 and January’ 2002 respectively and the lowest in Isd 20 (purity % : 77.44; recovery % 6.49 in September 2001) at water-logged and normal cultivated cane respectively. The highest R.S. % (1.51) was found in I-39/94 in all months and the lowest in I-110/93 (0.09) at water-logged cultivated cane. Result showed that the highest tiller (183.3×1000 ha ̄1 in I-110/93), millable cane (117.8×1000 ha ̄1 in I-8/95), Yield (162.8 t ha ̄1 in I-8/95) and TSH (16.63 ton sugar ha ̄1 in I-110/93) were found in normal cultivated and the lowest were found in water-logged cultivated sugarcane (tiller 107.6×1000 ha ̄1 in Isd 20; millable cane 73.38×1000 ha ̄1 in Isd 30; yield 59.4 t ha ̄1 in Isd 20 and TSH 6.75 ton sugar ha ̄1 in Isd 20). It is concluded that the highest percentage in juice quality were found in water-logged condition cultivated cane, on the other hand growth & yield performance were also found in highest in normal cultivated cane. In aspect of sugar production some tested cultivars showed (Isd-20, I-93/93 and I-8/95) similar performance in normal and water-logged cultivated sugarcane due to genetic potentiality and environmental adaptation on quality, yield and growth.
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