scholarly journals A study on processing conditions of fermented acerola juice

2018 ◽  
Vol 17 (05) ◽  
pp. 123-136
Author(s):  
Thanh T. Le
Keyword(s):  
Vitamin C ◽  
Sugar Concentration ◽  
Enzyme Treatment ◽  
Fermented Product ◽  
Sensory Score ◽  
Commercial Yeast ◽  
Processing Steps ◽  
Fermented Juice ◽  
Microbiological Properties

This study investigated some key processing steps of fermented acerola juice, including variety, maturity, enzyme treatment, sugar concentration and fermentation and pasteurization conditions. One or two-factor experiments were randomly designed to determine the most suitable processing variables based on the investigated parameters, including the content of vitamin C, sensory quality and physicochemical properties of the resultant juice. The results showed that the Brazil variety (Malpiphia emarginata D.C) had highest vitamin C content (1567.9 mg/100 g), followed by sour variety (Malpiphia glabra L.) (882.9 mg/100 g) and sweet variety (Malpiphia punicifolia L.) (630.4 mg/100 g). However, according to sensory evaluation results, the sour acerola juice after fermentation had the highest overall score, indicating to be the most suitable for processing. The fermented juice of sour acerola variety at 100% maturity had the highest sensory score and vitamin C content compared to other levels of maturity. In order to enhance the clarity of acerola juice, the addition of 0.15% pectinase enzyme (Pectinex ultra SPL, Novozymes) was the most effective compared to 0.05 and 0.1% (w/w) enzyme concentrations. The fermentation at 15oC in 48 hours with 22% sugar concentration and 0.1% commercial yeast (Saf-instant, France) obtained the highest quality fermented juice. The fermented product was pasteurized at 80oC for 10 minutes to stop fermentation process as well as to retain the color and taste of the fermented juice. The good quality of the fermented acerola juice, in terms of physicochemical, sensory and microbiological properties could be maintained for at least 6 months.

scholarly journals Effect of biomass reduction on the fermentation of cider

2007 ◽  
Vol 50 (6) ◽  
pp. 1083-1092 ◽  
Author(s):  
Alessandro Nogueira ◽  
Caroline Mongruel ◽  
Deise Rosana Silva Simões ◽  
Nina Waszczynskyj ◽  
Gilvan Wosiacki
Keyword(s):  
Alcoholic Beverage ◽  
Laboratory Scale ◽  
Efficient Treatment ◽  
Fermented Product ◽  
Biomass Removal ◽  
Fermented Beverage ◽  
Commercial Yeast ◽  
Biomass Reduction

The aim of this work was to determine the influence of biomass reduction in the cider processing and the quality of the fermented product made on laboratory scale, but in the same conditions usually found in factory units. The must, made with apples of the Gala variety, depectinized and transferred to 500 mL-fermenters, was inoculated with 2.0x10(6) cfu/mL of natural or commercial yeast, and at each 12 hours biomass was removed by centrifugation in one flask of the experimental set, and the must was left to ferment. All seven flasks of the fermented beverage were analyzed for 20-26 days after the inoculation, and the results showed that the best moment for biomass removal was 1.5-2.0 days of fermentation, leading to a product with significant residual sugars content, a low alcoholic degree, and with a fruity flavor. In addition, it was possible to practically eliminate all nitrogen, which was important to control the natural gasification. It was quite clear that biomass removal could be a very efficient treatment in order to obtain a sweeter and more pleasant alcoholic beverage, a better cider.

scholarly journals PENGARUH TINGKAT KONSENTRASI GULA PADA PROSES PENGOLAHAN MANISAN SALAK TERHADAP VITAMIN C DAN TINGKAT KESUKAAN KONSUMEN

2016 ◽  
Vol 5 (2) ◽  
pp. 37
Author(s):  
Syane Palijama ◽  
Josephina Talahatu ◽  
Priscillia Picauly
Keyword(s):  
Vitamin C ◽  
Moisture Content ◽  
Concentration Level ◽  
Food Product ◽  
Total Sugar ◽  
Sugar Concentration ◽  
Total Acid ◽  
Randomized Design ◽  
Concentration Result

Fruit of zallaca (Salacca edulis Reinw) can be made as food product. One of these products is zallaca sweet by using sugar as sweetener and preservative. The objective of the research was to study and determine sugar concentration level to maintain quality of zallaca sweet product. A complete randomized design was used in the research. A compeletely randomized design was used with eight treatments sugar concentration as follows 25, 30, 35, 40, 45, 50, 55, and 60% of sugar concentration. Result showed that using of 40% sugar could maintain the quality of zallaca sweet with concentration of vitamin C 0.033 mg, moisture content 76.56%, total acid 3.12%, total sugar 18,13% and pH 4.5.

Combination of Salt and Rice Ratio on The Nutritional and Microbiological Qualities of Ronto, a Shrimp Fermented Product from Kalimantan, Indonesia

2021 ◽  
Vol 3 (1) ◽  
pp. 23-34
Author(s):  
Rita Khairina ◽  
Nooryantini Nooryantini ◽  
Susana Ristiarini ◽  
Iryanti Fatyasari Nata
Keyword(s):  
Coastal Communities ◽  
Fermentation Products ◽  
Randomized Design ◽  
Fermented Product ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Side Dishes ◽  
The Impact ◽  
Microbiological Properties

Ronto is a fermented product of lactic acid bacteria made from rebon shrimp, salt, and rice. This product is a traditional food in the form of side dishes, chili sauce, and flavoring in the coastal communities of South Kalimantan, Indonesia. This research has been conducted on the combination of salt and rice to enhance the quality of shrimp fermentation products. Various studies have reported that salt in the process of shrimp fermentation affect the product quality. However, the impact from combination of salt and rice in various concentrations to the quality of shrimp fermentation products was not yet known. The purpose of this research was to study the effect of the combination of salt and rice on the quality of shrimp fermented products. The experimental was designed with a Completely Randomized Design Pattern, two factors salt and rice. The three concentrations of salt (10%, 11%, and 12%) and two concentrations of rice (20%, 30%,). The results showed that the concentration of salt and rice was significantly influencing on pH, total volatile bases (TVB-N), water content, ash, and microbiological properties. The condition for the best quality result is a combination of 11% of salt and 30% of rice.

scholarly journals Phytochemical changes in mango fruit in response to Alternaria alternata infection

2018 ◽  
Vol 36 (No. 3) ◽  
pp. 227-232 ◽  
Author(s):  
Jiao Li ◽  
Liangang Mao ◽  
Yanning Zhang ◽  
Lan Zhang ◽  
Hongyun Jiang
Keyword(s):  
Superoxide Dismutase ◽  
Vitamin C ◽  
Fruit Quality ◽  
Alternaria Alternata ◽  
Enzyme Activities ◽  
Phenylalanine Ammonia Lyase ◽  
Titratable Acidity ◽  
Mango Fruit ◽  
Malondialdehyde Content

Changes in mango fruit quality, malondialdehyde content, and enzymatic activities in response to pathogen Alternaria alternata infection were studied. A. alternata significantly affected the appearance of mango fruit at 5 and 7 days after treatment (DAT). The quality of pathogen-infected fruit first showed a significant decrease in titratable acidity and vitamin C content and a significant increase in pH since 3 DAT. The malondialdehyde content was higher than that in the untreated controls at 3 and 7 DAT. The enzyme activities of ascorbate peroxidase and polyphenol oxidase showed significant increases since 3 DAT. Significant increases in l-phenylalanine ammonia-lyase and superoxide dismutase activities were observed at 7 DAT. These results indicate that A. alternata infection first significantly affects some biochemical constituents and enzyme activities in mango fruit since 3 DAT and that there was no significant effect on appearance until 5 DAT.

scholarly journals Effect of different accellerators and inoculums used in fermentation on quality of dead chicken silage flour as feed ingredient for catfish

2017 ◽  
Vol 42 (2) ◽  
pp. 99 ◽  
Author(s):  
B. Bakrie ◽  
Y. Sastro ◽  
N. R. Sudolar
Keyword(s):  
Computer Program ◽  
Factorial Design ◽  
Fat Content ◽  
Corn Meal ◽  
Feed Ingredient ◽  
Streptomyces Sp ◽  
Fermented Product ◽  
Materials Used ◽  
Better Than

This research aimed at investigating the effect using molasses and cornmeal as additives with Lactobacillus sp. and Streptomyces sp. as inoculums during fermentation on the quality of silage flour made from dead chickens. The study was conducted using a completely randomized factorial design, consisting of 2 factors with 5 replications. The materials used were the newly dead chickens which were chopped and mixed thoroughly with all ingredients; then transferred into a 5 liters plastic box for fermentation. Observations were made after 3 weeks fermentation, including: a) physical characteristics, b) microbial contents, and c) nutritional contents. The data were calculated using variance analysis utilizing computer program of SPSS version 21.0. It was found that based on the protein contents the Lactobacillus sp. (19.0%) was better than the Streptomyces sp. (17.8%) if combined with molasses and corn meal as the accelerators. However, the fat contents produced were relatively similar for both of the inoculums (mean of 37.8%). It can be concluded that in order to obtain a best fermented product in terms of the protein and fat content, the dead chicken should be fermented using molasses and cornmeal as the accelerator and Lactobacillus sp. as the inoculum.

scholarly journals Impact of High-Pressure Homogenization Parameters on Physicochemical Characteristics, Bioactive Compounds Content, and Antioxidant Capacity of Blackcurrant Juice

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1802
Author(s):  
Bartosz Kruszewski ◽  
Katarzyna Zawada ◽  
Piotr Karpiński
Keyword(s):  
High Pressure ◽  
Vitamin C ◽  
Antioxidant Capacity ◽  
Bioactive Compounds ◽  
Titratable Acidity ◽  
Physicochemical Characteristics ◽  
Food Preservation ◽  
Inlet Temperature ◽  
High Pressure Homogenization

High-pressure homogenization (HPH) is one of the food-processing methods being tested for use in food preservation as an alternative to pasteurization. The effects of the HPH process on food can vary depending on the process parameters used and product characteristics. The study aimed to investigate the effect of pressure, the number of passes, and the inlet temperature of HPH processing on the quality of cloudy blackcurrant juice as an example of food rich in bioactive compounds. For this purpose, the HPH treatment (pressure of 50, 150, and 220 MPa; one, three, and five passes; inlet temperature at 4 and 20 °C) and the pasteurization of the juice were performed. Titratable acidity, pH, turbidity, anthocyanin, vitamin C, and total phenolics content, as well as colour, and antioxidant activity were measured. Heat treatment significantly decreased the quality of the juice. For processing of the juice, the best were the combinations of the following: one pass, the inlet temperature of 4 °C, any of the used pressures (50, 150, and 220 MPa); and one pass, the inlet temperature of 20 °C, and the pressure of 150 MPa. Vitamin C and anthocyanin degradation have been reported during the HPH. The multiple passes of the juice through the machine were only beneficial in increasing the antioxidant capacity but negatively affected the colour stability.

scholarly journals Desamerization of Bitter Jam: Biochemical and Sensory Quality

2018 ◽  
Vol 2018 ◽  
pp. 1-13
Author(s):  
Samira Lagha-Benamrouche ◽  
Terkia Benaissa ◽  
Rezki Sadoudi
Keyword(s):  
Chemical Composition ◽  
Vitamin C ◽  
Sensory Analysis ◽  
Sensory Quality ◽  
Bioactive Compound ◽  
Antioxidant Potential ◽  
Antioxidant Compounds ◽  
Bitter Orange ◽  
Sensorial Quality

This work consists of studying the influence of the desamerization of the mesocarpe on the chemical composition and the sensorial quality of the jam, based on the bitter orange. The results of the various analysis show that desamerization decreases acidity, sugars, protein, and bioactive compound levels (carotenoids, polyphenols, and vitamin C), but desamerized jams still remain an important source of antioxidant compounds with antioxidant potential in the diet. Concerning the sensory analysis of the jams, the results show that the jam desamerized with water presents the same bitterness as the bitter jam and that the salt significantly reduces the bitterness of the jams.

Reproductive efficiency and egg and larvae quality of Nile tilapia fed different levels of vitamin C

Aquaculture ◽  
2018 ◽  
Vol 482 ◽  
pp. 96-102 ◽  
Author(s):  
Nilda L.A.F. Sarmento ◽  
Edenilce F.F. Martins ◽  
Deliane C. Costa ◽  
Cristiano C. Mattioli ◽  
Gustavo S. da Costa Julio ◽  
...  
Keyword(s):  
Vitamin C ◽  
Nile Tilapia ◽  
Reproductive Efficiency ◽  
Different Levels

scholarly journals Pickle and Chutney Development from Fresh Hog Plum (Spondias dulcis)

2013 ◽  
Vol 5 (2) ◽  
pp. 67-72
Author(s):  
MHR Bhuiyan
Keyword(s):  
Chemical Composition ◽  
Vitamin C ◽  
Moisture Content ◽  
Salt Concentration ◽  
Storage Stability ◽  
Sugar Concentration ◽  
Initial Concentration ◽  
Overall Acceptability ◽  
Similar Product ◽  
Hog Plum

The experiment was conducted to develop pickle and chutney from fresh hog plum fruit. The pickle was made with 5%, 10%, 15% and 20% salt concentration. The chutneys were made with 25%, 30%, 35% and 40% sugar concentration. Among them, the best pickle and chutney was identified on the basis of overall acceptability. The study showed that the color, flavor, texture and overall acceptability of different pickles and the chutneys were different. The pickle (P15) made with 15% salt and the chutney (C40) made with 40% sugar concentration was best among others of the similar product. Higher concentration of sugar and salt gives higher acceptability for chutney and pickle, respectively. Among different changes in chemical composition, moisture and vitamin C concentration were prominent during preparation of pickle and chutney. The moisture content was 59.69% and 43.08% for pickle and chutney respectively which were nearly two third to half of the initial concentration of fresh hog plum fruit. The storage stability was studied for both the products and it is seen that chutney (4 month) was lower than storage stability of pickle (5 month).DOI: http://dx.doi.org/10.3329/jesnr.v5i2.14604 J. Environ. Sci. & Natural Resources, 5(2): 67-72 2012

Sign in / Sign up

Export Citation Format

Share Document