scholarly journals Effect of extraction ph and temperature on the physicochemical properties and pectin yield from mango peel (Mangifera indica L.)

2021 ◽  
Author(s):  
José Efraín Ramiírez-Benítez ◽  
Yulisa Yanilka Alcantara-Marte ◽  
Gerson Neftalí Arias Lara ◽  
Nelson Darling Velázquez Vizcaíno ◽  
Yanilka Yulisa Alcantara-Marte
Keyword(s):  
Physicochemical Properties ◽  
Design Methodology ◽  
Mangifera Indica ◽  
Extraction Temperature ◽  
Yield And Quality ◽  
Randomized Design ◽  
Mango Peel ◽  
Esterification Degree ◽  
Measuring Ph

Objective: To evaluate the effect of the pH and extraction temperature on the pectin yield from mango (Mangifera indica) peel, cultivar Banilejo, and its physicochemical properties. Design/methodology/approach: Pectin extraction was done by acid hydrolysis, using hydrochloric acid and ethyl alcohol to precipitate and purify. A randomized design with a factorial arrangement was used, evaluating the effect of pH (1.5, 2.0, and 2.5) and temperature (70, 80, and 90 ºC) on the yield and quality of pectin. Quality was determined by measuring pH, viscosity and moisture content, ash, methoxyls, and esterification degree. Their means were compared using Tukey's test at 95 % confidence. Results: The best results were obtained at pH 2.0 and 80 ºC, reporting an 18.159 % yield, 6.766 % moisture, 2.630 % ash, 0.085 Pa.s of viscosity, 26.307 % methoxyl, and 64.753 % esterification. Study limitations/implications: The different treatment combinations demonstrate that pH, ash, methoxyl content, and esterification degree vary as a function of the assessed pH and extraction temperatures; while viscosity, moisture and yield were not influenced by these variables. Findings/conclusions: It is concluded that mango peel is a viable source to obtain quality pectin.

scholarly journals PENGARUH KONSENTRASI STARTER Saccharomyces cerevisiae DAN LAMA FERMENTASI TERHADAP RENDEMEN DAN MUTU MINYAK KELAPA

2020 ◽  
Vol 10 (3) ◽  
pp. 106
Author(s):  
RINDENGAN BARLINA ◽  
STEIVIE KAROUW ◽  
PATRIK M. PASANG
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Fatty Acid Content ◽  
Coconut Oil ◽  
National Standard ◽  
Effective Technique ◽  
Yield And Quality ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Coconut Cream

<p>Untuk mendapatkan cara pengolahan minyak kelapa yang lebih eisien dalam menghasilkan rendemen dan mutu yang tinggi dan tahan simpan serta aman dikonsumsi telah dilakukan penelitian pengaruh konsentrasi starter Saccharomyces cerevisiae dan lama fermentasi terhadap rendemen mutu minyak kelapa. Penelitian dilaksanakan di Laboratorium Balai Penelitian Tanaman Kelapa dan Palma Lain Manado dan Kebun Percobaan Mapanget sejak bulan Maret sampai Desember 2001. Penelitian menggunakan rancangan acak lengkap disusun secara faktorial, yaitu faktor A adalah konsentrasi starter Saccharomyces cerevisiae, terdiri dari 0%, 0.25%, 0.35%, 0.45% dan faktor B adalah lama fermentasi krim. terdiri dari 0 jam, 12 jam, dan 24 jam. Ulangan dilakukan sebanyak 2 kali. Hasil penelitian diperoleh rendemen minyak tertinggi 23.83% pada fermentasi krim selama 24 jam. Mutu minyak kelapa yang dihasilkan sebagai berikut kadar air 0.03 - 0.18%, asam lemak bebas 0.15 - 0.29%, warna bening dan bau harum/ normal, bilangan peroksida berkisar 0.20 - 0.40 meq/kg, mutu minyak kelapa tersebut memenuhi Standar Nasional Indonesia (SNI) 01-2902-1992.</p><p>Kata kunci: Minyak kelapa, Saccharomyces cerevisiae, konsentrasi, fermentasi. rendemen, mutu</p><p> </p><p><strong>ABCTRACT </strong></p><p><strong>Effect of concentration of stater Saccharomyces cerevisiae and duration of fermentation on the content and quality of coconut oil</strong></p><p>Research on the effect of concentration of starter Saccharomyces cerevisiae on the content and quality of coconut oil was conducted at the Laboratory of Indonesian Coconut and Palmae Research Institute (ICOPRI) and Mapanget Research Instalation from March to December 2001. The objective of the research was to find out the effective technique and processing of coconut oil. The research used a completely randomized design with 2 factors and 2 replications. Factor A was the concentration of starter Saccharomyces cerevisiae of 0%, 0.25%, 0.35%, 0.45% and factor B was duration of fermentation consist of 0 hour, 12 hours, and 24 hours. The results showed that the highest yield of coconut oil is 23.83% was obtained by fermented coconut cream for 24 hours. The coconut oil had good quality with moisture content about 0.03 to 0.18%, free fatty acid content about 0.15 to 0.29%, colorless, good smell and peroxide value about 0.20 - 0.40 mcq/kg, the quality of coconut oil fulfilled the requirements of Indonesian National Standard (Standar Nasional Indonesia/SNI 01-2902-1992).</p><p>Key words: Coconut oil, Saccharomyces cerevisiae. concentration, fermentation, yield and quality</p>

scholarly journals Soybeans Competitiveness with Morning Glory

2016 ◽  
Vol 34 (1) ◽  
pp. 25-33
Author(s):  
F. PICCININI ◽  
T.N. MARTIN ◽  
S.L.O. MACHADO ◽  
N.D. KRUSE ◽  
R. SCHMATZ
Keyword(s):  
Leaf Area ◽  
Dry Mass ◽  
Morning Glory ◽  
Replacement Series ◽  
Yield And Quality ◽  
Randomized Design ◽  
Total Plant ◽  
Soybean Plants ◽  
Herbicide Use

Weeds interfere negatively on development, yield and quality of soybeans (Glycine max). Inadequate weed control by herbicide use can select for resistant or tolerant biotypes, leading to a shift in the weed flora. An example is the increase of incidence of morning glory (Ipomoea spp.) in soybeans growing areas in South Brazil. The aim of this study was to determine the competitiveness of soybeans intercropped with I. triloba, I. indivisa and I. purpurea through a replacement experiments series. Greenhouse experiments were conducted in a completely randomized design with four replications. The first experiment was carried out aiming to get the plant population while total plant dry mass remained constant. Other experiments were done under replacement series experiments with soybeans and morning glory ratios of 100:0, 75:25, 50:50, 25:75 and 100:0 using the 250 plant m-2 defined by the preliminary experiment. Leaf area, root and shoots dry mass were assessed. Diagrams along with index interpretation were used to performed a competitiveness analysis. Soybeans showed greater competitiveness as I. triloba, I. purpurea and I. indivisa species for the leaf area, root and shoots dry mass variables. Intraspecific competition prevails between soybean plants whilst interspecific competition prevails for morning glory.

Effect of soil physicochemical properties on yield and quality of sweet orange (Citrus sinensis (L.) osbeck)

2020 ◽  
Vol 68 (1) ◽  
pp. 107
Author(s):  
A. Ramanjaneya Reddy ◽  
V. Munaswamy ◽  
P. Venkataram Muni Reddy ◽  
B. Ravindra Reddy ◽  
P. Sudhakar
Keyword(s):  
Physicochemical Properties ◽  
Citrus Sinensis ◽  
Sweet Orange ◽  
Soil Physicochemical Properties ◽  
Yield And Quality

scholarly journals Yield and physical characterization of Passiflora cincinnata in the Brazilian Savanna

2021 ◽  
Vol 51 ◽  
Author(s):  
Ana Claudia Alves D’Abadia ◽  
Ana Maria Costa ◽  
Fábio Gelape Faleiro ◽  
Juaci Vitória Malaquias ◽  
Francisco Pinheiro de Araújo
Keyword(s):  
Fruit Shape ◽  
Passion Fruit ◽  
Brazilian Savanna ◽  
Yield Potential ◽  
Production Cycle ◽  
Pulp Yield ◽  
Yield And Quality ◽  
Randomized Design

ABSTRACT For the Caatinga passion fruit (Passiflora cincinnata Mast.), there are no indications of varieties specific for the Brazilian Savanna conditions, as well as conduction techniques that make it possible to express a greater yield potential. This study aimed to evaluate the yield and quality of CPEF2220 and CBAF2334 populations in espalier and trellis conduction systems. A completely randomized design was used, in a 2 x 2 factorial arrangement, with three replications of four plants per plot. The fruit yield and physical characteristics were evaluated throughout the production cycle. The average yield was 8.0 kg plant-1 (3.5-14.9 kg plant-1) and the average number of fruits per plant was 139.1 (55.8-283.5), with average pulp yield of 29 %. There was a tendency to increase the number and yield of fruits for the CPEF2220 population conducted in the espalier system. The plant survival rate was 41 % (CPEF2220) and 87.5 % (CBAF2334), with a higher adaptation to the Brazilian Savanna conditions, while the CPEF2220 population presented a higher yield potential. Reductions in mass, longitudinal and equatorial diameter and fruit shape were observed throughout the harvest, with some exceptions for the espalier system, which showed more elongated fruits. The trellis system showed a greater yield potential for the parent populations of the passion fruit BRS Sertão Forte, for the study conditions.

Effect of some growth regulators and systemic copper complexes on reducing floral malformation, yield and quality of "Alphonse" mango (Mangifera indica L. )

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
. ايمني فريد ابو حديد ◽  
نظمي عبد الحميد عبد الغني ◽  
samah nasr ◽  
Abdelaty Aboelezz
Keyword(s):  
Growth Regulators ◽  
Copper Complexes ◽  
Mangifera Indica ◽  
Yield And Quality

scholarly journals Effects of pre-sowing seed treatment with KCl on yield and quality of two peanut cultivars L12 and L18

2021 ◽  
Vol 20 (1) ◽  
pp. 1-9
Author(s):  
Trong V. Le
Keyword(s):  
Seed Treatment ◽  
Starch Content ◽  
Mineral Elements ◽  
Yield And Quality ◽  
Saponification Value ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Sowing Seed

The study was conducted to evaluate the effect of 0.05% KCl on yield and quality of two peanut varieties L12 and L18 grown in Thanh Hoa province. The experiment was arranged in a completely randomized design with two factors (varieties and chemicals). After careful selection, L12 and L18 seeds were divided into two parts. Part 1 was treated with distilled water as control and part 2 was treated with 0.05% KCl. The results showed that pre-sowing seed treatment with 0.05% KCl increased the yield components and yield of both L12 and L18 when compared to the control, in which the yield of L18 in both treatments reached 37.37 quintals/ha and 39.54 quintals/ha and was higher than that of the L12 variety at 35.77 quintals/ha and 36.40 quintals/ha. Pre-sowing seed treatment with 0.05% KCl also increased the quality of peanuts such as starch content, reducing sugar, lipid, saponification value, protein, B vitamins, total amino acids and content of some mineral elements in peanuts such as N, K, Ca, Mg. Briefly, the results of this study indicated that pre-sowing seed with KCl increased the yield and quality of peanuts.

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