scholarly journals CHARACTERISTICS OF FRUIT FERMENTATION OF ANNONA MONTANA FRUIT USING SACCHAROMYCES CEREVICIAE

2021 ◽  
Vol 4 (2) ◽  
pp. 99-111
Author(s):  
Ambar Fidya Sari

Soursop mountain (Annona montana Macf) is a genus of Annonaceae, which contains metabolite compounds and antioxidant activity. Mountain soursop fermentation process is carried out with the addition of yeast Saccharomyces cereviciae which can convert carbohydrates into ethanol and organic acid.. The study is aimed at knowing the impact of the duration of the fermentation on the Soursop mountain on physical and chemical characteristics as a natural preservative. The study involves three stages, beginning with the production of mountain-source-juice, then fermentation, and testing of physical characteristics involving organoleptic (colour, aroma, taste, and texture), pH, and viscosity, whereas on the chemical characteristic that is total acid. Research data is analyzed by the One Way Anova method when there is a valid influence followed by the Post Hoc Tukey at real levels α=5%. Changes in physical and chemical grade values include organoleptic (yellow whiteness, aroma scent of the tape, a slightly thick liquid texture (soft) and no gloating, a very sour taste, a 3,86 pH value, a viscosity 583,33 cp, and a total acetate acid 0,4281%.Keywords: Annona Montana; fermentation ;Saccharomyces cereviciae

2012 ◽  
Vol 3 (2) ◽  
pp. 180-183
Author(s):  
Marcelo Ferrarezi de Andrade ◽  
Renato de Toledo Leonardo ◽  
Edson Alves de Campos ◽  
Milton Carlos Kuga ◽  
Marco Antonio Hungaro Duarte ◽  
...  

ABSTRACT Objective This study evaluated the flow, pH and calcium release of MTA Fillapex (G1) or Fillapex plus 10% in weight of calcium hydroxide powder (G2), compared to AH Plus (G3) and Sealapex (G4). Materials and methods The flow test was performed according to ISO 6876:2001 requirements. The sealers were placed into plastic tubes and immersed in deionized water. After 24 hours, 7, 14 and 28 days, the water of each tube was removed and tested to evaluate the pH values and the level of released calcium. Calcium release values were analyzed statistically by Kruskal Wallis and Dunn tests and pH values analyzed by ANOVA and Tukey tests (α = 5%). Results G1 presented higher flow among all sealers. The addition of 10% calcium hydroxide into MTA Fillapex reduced the flow (p < 0.05) but, in a level, that is lower than the one recommended for ISO norms. G2 and G4 presented pH values and calcium release higher than G3 (p < 0.05) in all periods. G1 presented pH value higher than G3 (p < 0.05), except in 7 days period (p > 0.05). G4 presented higher pH values than G1 and G2, but the calcium release was similar for all periods (p > 0.05). G3 presented lower calcium release among all groups (p < 0.05). Conclusion The addition of 10% calcium hydroxide in MTA Fillapex caused reduction in flow and no negative interference in pH and/or calcium release. However, the obtained flow is different from ISO requirements. Clinical relevance MTA Fillapex presents levels of flow above the ISO norms. The addition of calcium hydroxide is a suggestion for solving this problem, but the impact of these procedures should be carefully evaluated. How to cite this article Keine KC, Guiotti FA, Leonardo RT, Kuga MC, Duarte MAH, de Campos EA, de Andrade MF. Influence of the Addition of Calcium Hydroxide Powder on Some Physical and Chemical Properties of the Sealer MTA Fillapex. World J Dent 2012;3(2):180-183.


2011 ◽  
Vol 281 ◽  
pp. 223-227 ◽  
Author(s):  
Jun Yin ◽  
Ju Kui Zhang ◽  
Lei Wu ◽  
Xin Li

Choose three kinds of clean drinking water distilled water, tap water, mineral water for the object, study the impact of magnetization on water’s conductivity, pH value, ORP and the solubility of insoluble salts by experiment of magnetic field intensity 500mT and different time, the results showed that magnetic treatment can improve the conductivity, pH of three kinds of water samples, lower ORP value, and has a certain significance on human health, but it is limited in improve the solubility of insoluble salts with the characterization of calcium carbonate.


2020 ◽  
Vol 60 (1) ◽  
pp. 55-74
Author(s):  
Nikolas Nagy ◽  
Miroslav Holienka ◽  
Matej Babic ◽  
Jakub Michálek ◽  
Egon Kunzmann

SummaryThe main aim of this research was to compare differences in heart rate values (HR) of soccer players during small-sided games (SSGs) with different number of players. We assumed that the number of “neutral” player or players in small-sided games will significantly affect the intensity of SSGs and in this case the heart rate values of participating players. The experimental group consisted of older junior players from the FC DAC 1904 Dunajská Streda soccer club (n = 9). The heart rate values were evaluated on the basis of collected data, which we obtained using Polar sport testers and special software Polar Team2. In order to find out the statistical significance of the difference in heart rate was used the One-Way ANOVA and the Bonferroni post hoc test. The level of statistical significance we set at 5 %. We found out that with increasing number of “neutral” players’ the intensity of small-sided games gradually decreased. During SSG1 (3 vs. 3), we recorded the highest achieved average heart rate values of the monitored players, in average 171.33 ± 9.39 beats.min-1. This form of the SSGs was the most intense, but not statistically significant. Our recommendation is to employ SSGs in the systematic training process with different number of players, because we can adequately prepare the players for the match load itself. Attention need to be paid for the playing position requirements.


2015 ◽  
Vol 4 (3) ◽  
pp. 259-270
Author(s):  
Donné Close ◽  
Nico Martins

Generation sub-groups have been and continue to be stereotyped as requiring different approaches in the workplace and elsewhere with regard to what keeps them motivated and satisfied. Two measuring instruments were distributed electronically to all staff of a South African Facilities Management firm. The one-way ANOVA was conducted with post-hoc tests to establish which factors display statistically significant differences between generations. The findings demonstrated that certain generation sub-groups have preferences for different types of reward, reward categories, and have different perceptions about what types of reward attracts, motivates and retains employees. The main recommendation is that the company needs to adopt a flexible approach to reward and recognition that allows employees to tailor their reward structure to their own needs.


2021 ◽  
Vol 8 (7) ◽  
pp. 214-220
Author(s):  
Long Tong ◽  
◽  
Hongyan Li ◽  
Xiaoming Liu ◽  
Bin Li ◽  
...  

The continuous obstacle of Dictyophora indusiata has become the one of the main factors affecting the healthy development of D. indusiata industry. In order to study the effects of continuous cropping of D. indusiata on the soil environment, four treatments were used in this study: no planted (CK), planted for 1 years (1Y), continuous cropping for 2 years (2Y) and continuous cropping for 3 years (3Y), to determined of the yield of D. indusiata, soil physical and chemical properties, microbial content and enzyme activity. The results showed that the yield and soil pH value decreased with the increase of continuous cropping years, and the contents of organic matter, total nitrogen, total phosphorus and total potassium, C/N and C/P also increased with the increase of continuous cropping years. Soil availability decreased with the increase of continuous cropping years, the content of alkaline nitrogen, available phosphorus and available potassium decreased by 12.25%, 28.91% and 24.86% at 3Y compared with 1Y, respectively. The biomass of bacteria, actinomycetes and fungi and the total amount of microorganism in soil increased at 1Y compared with CK, but with the increase of continuous cropping years, the biomass of bacteria and actinomycetes and the total amount of microorganism decreased significantly, while the biomass of fungi increased significantly; the continuous cropping of D. indusiata also decreased the value of bacteria/fungi in soil. The enzyme activities of the soil were higher than those of the unplanted plots, however, the activities of urease, catalase, peroxidase, sucrase, phosphatase and protease decreased with the increase of continuous cropping years. In a word, with the increase of continuous cropping, the acidity of rhizosphere soil increased, the availability of soil nutrients and the activity of soil enzymes decreased, the biomass of soil microorganisms, bacteria and actinomycetes decreased. However, the increase of fungal biomass led to the decline of soil texture.


2020 ◽  
Vol 11 (1) ◽  
pp. 65
Author(s):  
Charles Manurung ◽  
Melysa Loeslim ◽  
Setia Budi Tarigan

This research was conducted to determine the effectiveness test of papaya leaf extract with a concentration of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80% and 90% and 100% against staphylococcus epidermidis bacteria. Staphylococcus epidermidis is a gram-positive bacterium in the form of cocci and is harmful to humans. This research was conducted with an experimental method with a post-test only design and sampling with a purposive sampling method. The investigation of the effectiveness of papaya leaf extract against staphylococcus epidermidis was done by diffusion using paper discs, namely by calculating the diameter of the bacterial inhibition zone of paper discs that have been moistened with papaya leaf extract. The results of this study were analyzed out with the One-Way ANOVA test followed by the Post Hoc Test. The test showed that there were significant differences from each treatment given with a 95% confidence index. The bacteria treated with papaya leaf extract 100% against staphylococcus epidermidis had the highest average inhibitory zone power compared to other concentrations of 14.97 mm. The papaya leaf extract 100% has the best antibacterial effect compared to other concentrations because the best inhibitory zone power is found on those extract concentrations.


Author(s):  
Wahyu Tusi Wardani ◽  
Rahmadhanti Dwi Andraini

Background: Cloves have an active bacteria-killing substance such as eugenol compound, eugenol acetate and caryophyllene. This research uses clove leaves because they have not been utilized maximally and still considered to be less useful waste. The main component in clove leaf essential oil is eugenol, in clove leaf essential oil is generally between 80-88%.Objective: The purpose of this research is whether clove leaf infusion has antibacterial activity toward Escherchia Coli and how much infusion concentration of clove leaf that is effective toward coli bacteria.Methods: This research was an experimental study by using purposive sampling method, with dry leaf criteria, brown color, and not moldy. Making extracts in this study used the infundation method. This study used three concentrations of clove leaf infusion, namely with a concentration of 1.1%, 2.3%, 4.5%. The antibacterial test used the Kirby Baure method to determine the sensitivity of gram-negative microorganisms Escherchia coli.Results: The results in this study were iradical that from various concentrations in clove leaf infusion samples 1.1%, 2.3%, 4.5% could cause antibacterial effectiveness toward Escherchia coli. The concentration of clove leaf infusion that is effective toward Escherchia coli bacteria is a concentration of 4.5%. Test statistical analysis used One Way One Anova Analysis. Based on the results, there were significant differences between all groups because of the sig. <0.05. While the One Way Anova Post Hoc Analysis test results have 2 results, there was no difference and there were significant differences between treatments.Conclusion: Clove leaf infusion can cause antibacterial effectiveness toward Escherchia coli.Keywords: Clove leaf infusion, Kirby Baure Method, Escherchia coli.


2015 ◽  
Vol 1098 ◽  
pp. 51-57 ◽  
Author(s):  
Saravana Kannan Thangavelu ◽  
C. Piraiarasi ◽  
A.S. Ahmed ◽  
F.N. Ani

The present study aims to investigate the impact of biodiesel-diesel-bioethanol (BDE) blended fuel on the degradation behavior of elastomers such as nitrile rubber (NBR) and polytetrafluroethylene (PTFE). Static immersion test in B20D75E5 blends (20% biodiesel, 75% diesel and 5% bioethanol) at 50°C for 200 h was carried out. At the end of immersion test, degradation behaviour of elastomers was investigated by measuring mass, volume and hardness. The exposed surface of elastomers was studied using optical microscope (OM). Fourier Transform Infrared (FTIR) spectroscopy was carried out to identify the chemical and structural changes in the elastomers. Moreover, physical and chemical characteristics of the fuel blend after the immersion test such as total acid number (TAN), density and colour change were also investigated. Results showed that the degradation of NBR was high compared to PTFE.


2020 ◽  
Vol 19 (5) ◽  
pp. 209-213
Author(s):  
Stephanie Douglas ◽  
Robin Roberts

Purpose Employee engagement studies are popular in contemporary research because of the complexity organizations face in nurturing the performance and productivity of multi-generations of workers. The purpose of this paper is to assess association of age and dimensions of work engagement. Design/methodology/approach In total, 181 participants completed the Utrecht Work Engagement Scale (UWES) to measure work engagement including the dimensions of absorption, vigor and dedication as well as demographics. One-way ANOVA and post hoc tests were conducted to examine the relationship between age and work engagement. Findings Employees 50 years of age and older were found to have statistically significant higher work engagement scores than the employees under the age of 50. Statistically significant scores were also found to be higher in absorption and dedication. Originality/value The workforce is aging with older employees becoming larger populations in organizations. Understanding how age influences employee work engagement supports human capital management strategy within organizations. HR professionals can also use the findings to develop targeted employee engagement to leverage the dedication and talents of older employees.


2020 ◽  
Vol 20 (1) ◽  
pp. 59-64
Author(s):  
Eva Fitriana ◽  
Surahma Asti Mulasari

Latar Belakang: Lalat merupakan salah satu serangga yang memiliki populasi tinggi di lingkungan masyarakat. Lalat berperan dalam penularan penyakit pada manusia seperti disentri, tifoid, kolera infeksi cacing, conjungtivitis, trachoma kusta, mikosis, dan difteri kutaneus. Fly trap digunakan untuk pengendalian lalat dewasa dalam jumlah besar dan padat. Penerapan Fly trap dilakukan diluar rumah pada udara terbuka dan tidak terhindar dari pepohonan. Penggunaan alat ini berpasangan dengan umpan yang digunakan untuk menarik lalat dengan bau dan kandungan pada umpan. Penelitian ini dilakukan untuk mengetahui efektifitas variasi umpan pada Fly trap dalam pengendalian lalat di tempat pembuangan sementara (TPS) Jalan Andong Yogyakarta.Metode: Penelitian ini merupakan penelitian eksperimen dengan variasi umpan ikan, udang, buah nangka, terasi, dan buah mangga. Pengukuran dilakukan pada radius ± 1 Meter dari tumpukan sampah dan dibiarkan selama 2 jam selanjutnya lalat yang terperangkap dihitung menggunakan handcounter. Data yang diperoleh dianalisis menggunakan uji One Way Anova dengan derajat kesalahan α 0.05 dan dilanjutkan uji Post hoc Tamhanne.Hasil: Hasil penelitian menunjukan terdapat hasil yang signifikan rata-rata lalat yang terperangkap pada Fly trap dengan umpan terasi dan umpan udang diperoleh nilai p=0,042 (p<α). Terdapat perbedaan bermakna antara umpan terasi dan umpan udang. Lalat yang terperangkap pada Fly trap umpan terasi sebanyak 69 ekor lalat, dan lalat yang terperanfkap pada Fly trap umpan udang sebanyak 1123 ekor lalat.Simpulan: Ada perbedaan rata-rata lalat yang terperangkap pada Fly trap umpan ikan, udang, buah nangka, terasi dan buah mangga. Terdapat perbedaan bermakna rata-rata lalat yang terperangkap antara Fly trap umpan terasi dan umpan udang. ABSTRACT Title: The Effectivennes of various feed variations in the fly trap as a control of fly density at the Andong street Yogyakarta.Background: Flies are one of the insects that have a high population in the community. Flies play a role in transmitting disease to humans such a dysentery, typoid, cholera, worm infection, conjungtivitis, leprosy trachoma, mycosis and cutaneus diphteria. Fly traps are used fpr the control of large and dense adult flies. The application on fly traps is carried out outside the house in the open air and is not spared from trees. The use of this tool is paired with the bait used the attract flies to get closer to the smell and content of the bait, this research was conducted to determine the effectiveness of bait varians in the fly trap in controlling flies at the temporary disposal site (TPS) at the Andong street Yogyakarta.Method: This research was a experimental study with a variety of bait fish, shrimp, jackfruit, shrimp paste, and mango. Measurements were made at radius of ± 1 meter from the garbage pile. The data obtained were analyzed using the One Way Anova tesy with an error degree of α=0,05 and continued with the Post hoc Tamhanne test.Result: The result showed that there were significant result on the average of flies trapped in the fly trap with the shrimp paste bait and shrimp bait obtained p value = 0.042 (p<α). That there was a significant difference between shrimp paste bait and shrimp bait.Conclusions: There was a difference in the average number of flies trapped in fly traps for fish, shrimp, jackfruit, shrimp paste, mango. There was a significant difference of flies trapped between shrimp paste bait and shrimp bait. Fly trap shrimp bait is the most preferred bait by flies shrimp paste bait is the least preferred bait by flies.  


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