scholarly journals Effect of PLA/PBAT Antibacterial Film on Storage Quality of Passion Fruit during the Shelf-Life

Molecules ◽  
2019 ◽  
Vol 24 (18) ◽  
pp. 3378 ◽  
Author(s):  
Rong Zhang ◽  
Wenting Lan ◽  
Jie Ding ◽  
Saeed Ahmed ◽  
Wen Qin ◽  
...  

In this experiment, we studied the effect of poly(lactic acid)/poly(butylene adipate-co-terephthalate) (PLA/PBAT) blend films on the efficiency of passion fruit preservation at 20 °C. The weight loss, shrinkage index, firmness, and total sugar of passion fruit packaged with PLA/PBAT films had no significant differences compared with PE films during 21 days (p > 0.05). PLA/PBAT films can more effectively reduce the rising of ethanol content and delay the total acid, ascorbic acid, and sensory evaluation. Compared with unpackaged (CK) and polyethylene (PE) films, PLA/PBAT films are more conducive to preserve the overall flavor of passion fruit during storage time, in agreement with sensory evaluation, tested by E-nose, E-tongue, and GC-MS, which also proved that it can effectively maintain the edible quality of passion fruit during storage time. We believe that our study makes a significant contribution to literature because it paves the way to the generalization and application of packaging films based on composite antibacterial polymers and facilitates the commercialization of fresh passion fruit as an important health food.

2018 ◽  
Vol 2 ◽  
pp. 102-107
Author(s):  
Suman Lal Shrestha ◽  
Ram Shovit Yadav

Soy corn yoghurt is a vegan friendly product prepared by using soymilk as the major ingredient. The aim of this study was to assess the effect of corn milk addition (0, 10, 20, 25 & 30%) on the quality of soy yoghurt. The samples were subjected to sensory evaluation for consumer acceptability and data were subjected to statistical analysis. From sensory evaluation and statistical analysis 10% corn milk inclusion was selected as the best product (p<0.05). The yoghurt thus prepared using 10% corn milk had total solids 22.04%, moisture content 78.62%, protein 4.84%, fat 3.29%, carbohydrate 12.57%, ash 0.81%, acidity 0.68% and pH 4.58. Both control and 10% corn milk incorporated yoghurts were stored under refrigeration 6±1° C and analyzed at 2 days interval till 10 days. Yoghurts with corn milk and control were organoleptically acceptable up to 10 and 6 days respectively. Acidity and syneresis increased but pH decreased with storage time in both samples.


2014 ◽  
Vol 528 ◽  
pp. 138-143
Author(s):  
Jing Yong Zhang ◽  
Dong Li Li ◽  
Wen Cai Xu ◽  
Ya Bo Fu

In order to extend the storage time of Kyoho grapes at low temperature, an active, slow-releasing sterilization packaging was studied. The fresh Kyoho grapes were picked after harvest and packaged in the active slow-releasing sterilization packaging at 5°C with conventional polyethylene membrane and naked treatments served as control groups.The sensory evaluation and nutrition facts were studied to evaluate the quality of Kyoho grapes after preservation. The results indicate that the storage period of Kyoho grapes can be extended to eighty five days with green stems, intact grapes and good taste.


Author(s):  
Apul Sitohang ◽  
Baang Soyun Marbun

This study aims to determine the effect of packaging types and storage duration on the quality of andaliman powder. The study was conducted at the Laboratory of Processing and Management of Agricultural Products, Agricultural Product Technology Study Program, Faculty of Agriculture, Catholic University of St. Thomas Medan. This research was conducted using Factorial Complete Random Design method. The first factor is packaging with a password (K), consisting of 4 types, namely: K1 is Glass bottle, K2 is Plastic bottle, K3 is Flip plastic and K4 is Paper. The second factor is the storage time with L code which consists of four levels, namely: L0 is 0 weeks, L1 is 2 weeks, L2 is 4 weeks and L3 is 6 weeks. The results showed that the type of packaging had a very significant effect on water content, total acid, oleoresin content and organoleptic value, but it was not significant for ash content. The highest water content, ash content and total acid were found in paper plastic packaging, while the lowest was in glass bottle packaging, while the highest oleoresin content and highest organoleptic value were found in glass bottle packaging, while the lowest was on paper packaging. Storage time has a very significant effect on water content, total acid, oleoresin content and organoleptic value, but not significant to ash content. The longer the storage, the moisture content, ash content and total acid content increase, while the oleoresin content and organoleptic values decrease. The interaction between the type of packaging and storage duration gave no significant effect on water content, ash content, total acid, oleoresin content and organoleptic value. The best quality of andaliman powder is obtained in the type of glass bottles and plastic bottles which can be seen from the water content, oleoresin content and organoleptic value.  


Foods ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 61 ◽  
Author(s):  
Ali Saleh ◽  
Abdellatif A. Mohamed ◽  
Mohammed S. Alamri ◽  
Shahzad Hussain ◽  
Akram A. Qasem ◽  
...  

This study was conducted to investigate the effect of various native starches on the rheological and textural properties of non-fat set yogurt. The yogurt samples were prepared while using five types of starches (potato, sweet potato, corn, chickpea, and Turkish beans). The physical properties of the prepared yogurt were analyzed while using shear viscosity, viscoelasticity, and texture analysis. The tests were performed after 0, 7, and 15 days storage. The effect of these starches on the yogurt viscoelastic properties, texture, syneresis, and sensory evaluation were determined under optimum conditions. The results showed that adding 1% starch could significantly (p < 0.05) reduce syneresis and improve yogurt firmness. Starches exhibited different effect on the overall quality of the yogurt due to their origin and amylose content. Regardless of the number of storage period duration, all of the samples, including the control behaved as pseudoplastic materials (n < 1) with various levels of pseudoplasticity. Yogurts with corn and tuber starches had the highest consistency coefficient (k), which indicated higher viscosity. The yogurt sample with chickpea starch exhibited the highest G´, making the gel more solid like. Therefore, the influence of tuber starches (potato and sweet potato) on G´ was different when compared to corn or legume starches. The behavior of the starches changed with storage time, where some starches performed better only at the beginning of the storage period duration. Wheying-off was significantly reduced, regardless of starch type. The pH of the yogurt remained unchanged through storage. Sensory evaluation showed a preference for starch-containing samples as compared to the control, regardless of the starch type. The variation in yogurt quality as a function of starch type could be attributed to the starch granule structure, gelatinization mechanism, or amylose content.


2020 ◽  
Vol 38 (No. 5) ◽  
pp. 301-307
Author(s):  
Anna Draszanowska ◽  
Mirosława Karpińska-Tymoszczyk ◽  
Magdalena Anna Olszewska

The pork was pasteurised in jars in 4 formulations: control (C), with the addition of chilli peppers (CHP), with the addition of sodium ascorbate (SA), and with the addition of butylated hydroxytoluene (BHT), and stored at 5 °C for 50 days. Although the addition of chilli peppers did not slow down lipid oxidation in pork, this product had lower lightness and higher redness and yellowness than the other products. It was also characterised by the lowest hardness and chewiness values. Sensory evaluation revealed that meat with CHP had a less intense fatty flavour and aroma, and no off-flavour or off-odour. This variant was also evaluated as more juicy and soft, and the taste and aroma of chilli peppers were distinctively perceptible throughout storage. Pork with CHP received significantly higher scores for overall quality.


Author(s):  
Winda Amilia ◽  
Andi Eko Wiyono ◽  
Dhifa Ferzia ◽  
Andrew Setiawan Rusdianto ◽  
Ida Bagus Suryaningrat ◽  
...  

Edamame soybeans are a superior product in Jember Regency. Edamame has the advantage of protein, calcium and iron content. In general, edamame soybeans are a perishable food commodity that must be processed immediately. One of the processed edamame products is frozen salted edamame which is a practical ready-to-eat snack. Frozen salted edamame has attracted the interest of the people of Jember and people outside the city. This product is popular with people outside the city, so they often buy it to take home as a souvenir from Jember Regency. Uncontrolled environmental conditions during the trip with sudden temperature changes without cold storage cause the potential for physical damage or deterioration of quality in frozen salted edamame. Therefore, further observations are needed to determine changes in the quality of frozen salted edamame products during the trip without cold storage at room temperature storage. The purpose of this study was to determine the effect of room temperature storage time on physical quality, chemical quality, and organoleptic quality of frozen salted edamame products. The design of this study used a completely randomized design with a single factor, namely five treatments for different durations (0 hours, 12 hours, 24 hours, 36 hours, and 48 hours after removed from the freezer). The analyzes carried out in this study were the test of texture, color, pH, total dissolved solids, total acid, antioxidant activity, moisture content, and organoleptics. The results showed that the frozen salted edamame product decreased during storage time at room temperature. Based on the results of research, the duration of storage for frozen salted edamame products at room temperature has an effect on the value of color, pH, total dissolved solids, total acid, and water content, but does not affect the texture and antioxidant activity. The quality of the product also decreased in color, taste, aroma, and texture attributes.


2021 ◽  
Vol 10 (1) ◽  
pp. 119
Author(s):  
Hidayanti Sukmaningrum ◽  
Luh Putu Trisna Darmayanti ◽  
Gusti Ayu Kadek Diah Puspawati

Fermented milk is a functional food has beneficial to human health. The recommended concentration of probiotic bacteria to provide health benefits is 106-108 CFU/ml of product. The storage temperature is one of the factor that affected the characteristics of fermented milk. This research was conducted to determine the effect of storage time at room temperature to the characteristics of fermented milk product and determine the length of maximum storage at room temperature. The research design was Completely Randomized Design with storage time treatment at room temperature for 0, 2, 4, 6, 8, 10, 12, and 14 days. Each treatment was repeated 2 times so that 16 experimental units were obtainned. The variables that were observed included total LAB, total acid, pH, and sensory evaluation (aroma, taste, and overall acceptance). Data were analyzed with analysis of variance, if the treatment had an effect on the variables then followed by Duncan multiple range Test. The results showed that the treatment of fermented milk in room temperature storage significantly affected the total acid, pH, total LAB, and sensory evaluation (aroma, taste, and overall acceptance). The maximum storage of the room temperature was days with total acid of 0.5%, pH 3.63, total LAB 7.71 log cfu/ml or 5.12 x 107 cfu/ml, the sensory of aroma, taste, and overall acceptance was liked.


2019 ◽  
Vol 131 ◽  
pp. 01080
Author(s):  
Yun Fen Liu ◽  
Zhen Hong Guo ◽  
Mu Bo Song ◽  
Yuan Li Liang ◽  
Zhong Tian Pan ◽  
...  

In order to investgate the effects of H2S on the quality of cold-storage passion fruit, fresh harvested fruits were treated with different concentrations of H2S(0 mmol/L, 1 mmol/L, 2 mmol/L, 3 mmol/L), packaged with BOPP plastic wrap and placed into 5±1°C for 35 days. Samples were randomly selected and at 7-days interval during cold storage, compared the preservation effect of different concentrations of H2S. The results indicated that the fruits with 2 mmol/LH2S treatment have better chroma and lower weight loss rate, and soluble solid content, titratable acidity, vitamin C, sugar were preserved at higher level than that of control fruits during storage time. These results showed that 2 mmol/LH2S treatment could maintain the quality of passion fruit during cold storage.


2018 ◽  
Vol 13 (3) ◽  
pp. 115
Author(s):  
Riyanti Ekafitri ◽  
Rima Kumalasari ◽  
Dewi Desnilasari

<p>Jenis dan konsentrasi hidrokoloid akan menentukan kualitas dari minuman jeli baik sifat fisikokimia dan penerimaan sensorinya. Tujuan penelitian ini adalah untuk mengkaji pengaruh jenis dan konsentrasi hidrokoloid terhadap mutu fisikokimia dan penerimaan minuman jeli berbahan baku sari buah campuran pepaya (<em>Carica papaya</em>) dan nanas (<em>Ananas comosus</em>). Penelitian ini disusun menggunakan Rancangan Acak Lengkap Faktorial dengan 2 faktor, yaitu faktor jenis hidrokoloid, terdiri dari 2 taraf (karagenan dan karagenankonjak) dan faktor konsentrasi hidrokoloid, terdiri dari 3 taraf (0,5%,0,7%, 0,9%, dan 1,1%). Analisis yang dilakukan adalah analisis pH, total asam tertitrasi (TAT), total padatan terlarut (TPT), dan uji organoleptik. Produk terbaik diuji dan dibandingkan teksturnya dengan produk komersial. Produk terbaik diuji proksimat, kandungan serat pangan dan warna. Hasil penelitian menunjukkan jenis dan konsentrasi hidrokoloid berpengaruh terhadap pH, tetapi tidak berpengaruh terhadap TPT dan TAT minuman jeli. Tingkat kesukaan panelis berdasarkan uji organoleptik pada paramater warna, aroma, rasa, daya sedot, dan penerimaan keseluruhan terhadap minuman jeli dipengaruhi oleh konsentrasi hidrokoloid tetapi tidak dipengaruhi oleh jenis hidrokoloid. Produk terbaik yang mendekati produk komersial adalah minuman jeli pepaya nanas dengan penambahan hidrokoloid karagenan 1,1% dengan sifat fisik : kekerasan 62,5 gf dan kekuatan gel 7,33 Mj, mengandung kadar air 84,02%, abu 0,17%, lemak 0,39%, protein 0,26%, serat pangan sebesar 6,39%, vitamin C sebesar 19,99 mg/ 100g dan warna dengan nilai L 28,64; a 4,73 ; dan b 9,52.</p><p align="center"><strong>English Version Abstract</strong></p><p align="center"><strong><strong>(Effect of Type and Concentration of Hidrocolloid on the Quality of Jelly Drink from Papaya-Pineapple Mixed Juice.)</strong></strong></p><p>The type and concentration of hydrocolloids will determine the quality of jelly products both physicochemical and sensory evaluation. Beside has a high gel strength and low syneresis, carrageenan and konjac (konjac glucomannan) also contain high dietary fiber. The purpose of this study was to find out the effect of the type and concentration of hydrocolloid on the physicochemical and sensory evaluation of the jelly drink made from a papaya pineapple mixed juice. This study uses a factorial completely randomized design (CRD) to evaluate the effect of two kinds of hydrocolloids (carrageenan and mixture of carrageenan konjac) and four concentrations of hydrocolloid (0.5; 0.7; 0.9; 1.1%), in manufacture of jelly drink. An analysis of eight treatments i.e., pH, total acid, total dissolved solids, and organoleptic test. Samples will be selected into two products using DeGarmo effectiveness index, which its texture will be tested and compared to commercial products. The best products analyzed proximate value, the content of dietary fiber and color. Results showed that the type and concentration of hydrocolloids influenced the levels of pH jelly drink, but did not affect on dissolved solids and total acid. Hydrocolloid concentration also affects the assessment of the panelists of the jelly drink products. The best product is papaya pineapple jelly drink with the addition of 1.1% carrageenan hydrocolloid with physical properties: hardness 62.5 gf and gel strength 7,33 Mj, containing moisture 84.02%, ash 0.17%, fat 0.39 %, 0.26% protein, dietary fiber 6.39%, vitamin C 19.99 mg/100 g and color properties : value of L 28.64; a 4.73; and b 9.52.</p>


HortScience ◽  
1992 ◽  
Vol 27 (7) ◽  
pp. 809-810 ◽  
Author(s):  
Harvey E. Arjona ◽  
Frank B. Matta ◽  
James O. Garner

Vine-ripened yellow passion fruit (Passiflora edulis f. flavicarpa Deg.) packed and shipped from Homestead, Fla., were stored for 15, 30, or 45 days at 5, 10, or 15C. Fruit analyzed immediately on arrival had the best external appearance and highest fruit weight. Fruit weight loss increased with storage time at all temperatures and the response was linear. Fruit external appearance deteriorated rapidly at 5 and 15C. Pulp percentage at 5C increased linearly with storage duration and did not change at 10C. Pulp percentage at 15C changed quadratically with storage time, increasing up to 30 days and then decreasing by 45 days. Soluble solids concentration did not change at 5 or 10C, but decreased linearly at 15C. Sucrose content decreased quadratically at 5C, linearly at 15C, but increased linearly at 10C. Fructose and glucose content decreased quadratically with storage time at 15C. Glucose content increased linearly at 5 and 10C and fructose content did not change at these temperatures.


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