scholarly journals The Effects of Edible Coatings on the Postharvest Quality of Citrus Fruits as Affected by Granulation

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
İbrahim Kahramanoğlu ◽  
Chuying Chen ◽  
Zengyu Gan ◽  
Jinyin Chen ◽  
Chunpeng Wan

The world population is growing day-by-day, while the available natural resources for agricultural production, i.e., soil and water, are rapidly decreasing. Moreover, consumer preferences are highly affected by some quality characteristics of food products, which can be classified as external, internal, and hidden attributes. Among the internal quality attributes, granulation is a significant factor damaging the inner quality of citrus fruits and reducing the consumer attraction. The main symptoms of granulation (also known as section drying, crystallization, or scarification) in citrus are shrivelling in juice sacs due to gel formation, hardening, white colour, and low extractable juice content. A well-known result of the granulation is the reduction in soluble solid concentration (SSC), total sugar, and titratable acidity (TA). Granulation is known to affect the citrus fruit quality all over the world. Since citrus is one of the world’s most popular fruit species, it is highly important to identify and manage this physiological problem to help sustainable production throughout the world. Consumer’s preferences have also been moving towards the use of eco- and environmental-friendly alternative methods in postharvest fruit storage, including edible coatings. Edible coatings act as a barrier for the air and water transitions through the surface of fruits which results in retarding the deterioration of fruits, preventing and/or controlling the microbial decay, improving the fruit quality, and hence extending the storage duration. The mechanism of citrus fruit granulation is highly associated with the oxidative stress, and edible coatings have been reported to significantly reduce granulation and improve the quality of the fruits. In line with this information, this review article aimed to summarize the reasons, results, and managements of granulation of citrus fruits.

2016 ◽  
Vol 10 (1) ◽  
pp. 64-69
Author(s):  
Fauziati Fauziati ◽  
Yuni Adiningsih ◽  
Ageng Priatni

Edible coatings represent preservation techniques also function as a packaging material that is applied directly to food items including fruits. Its use is intended to extend the shelf life and improve the quality of food products and is biodegradable materials that are more environmentally friendly. Research Stearin use as edible coating on citrus fruits have been done. The use of stearin used was 0%, 0.1% and 0.2% combined with gelatin at a fixed amount that is 2 g. Edible coatings applied to citrus fruit which gained the best results are stearin 0.1% with test results shrinkage lowest weight on day 12 amounted to 5.598% for the treatment of immersion and can retain the vitamin C content of 40.3 mg / 100 g and can maintain antioksioksidan to 12 days with the antioxidant content of 74.7%.ABSTRAKEdible coating merupakan teknik pengawetan sekaligus berfungsi sebagai bahan pengemasan yang diaplikasikan secara langsung pada bahan pangan termasuk buah buahan. Penggunaannya dimaksudkan untuk memperpanjang masa simpan dan memperbaiki kualitas produk pangan serta merupakan bahan yang biodegradable sehingga lebih ramah lingkungan. Penelitian penggunaan Stearin kelapa sawit sebagai edible coating pada buah jeruk telah dilakukan. Penggunaan stearin yang digunakan adalah 0%, 0.1% dan 0.2% yang dikombinasikan dengan gelatin dengan jumlah tetap yaitu 2 g. Edible coating diaplikasikan ke buah jeruk dimana diperoleh hasil terbaik yaitu stearin 0.1% dengan hasil uji susut bobot terendah pada hari ke 12 sebesar 5.598% untuk perlakuan celup dan dapat mempertahankan kandungan vitamin C sebesar 40.3 mg/100 gr serta dapat mempertahankan antioksioksidan sampai 12 hari dengan kandungan antioksidan 74.7%. Kata kunci : Stearin, Edible Coating, buah jeruk 


Agriculture ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1204
Author(s):  
Nittaya Ummarat ◽  
Kanogwan Seraypheap

The postharvest quality of rambutan fruits (Nephelium lappaceum Linn.) is mainly influenced by dehydration, which causes browning of the peel and spinterns. This research investigated the effects of some essential oils—from citronella, clove, kaffir lime, and lemongrass—on ‘Rongrien’ rambutan fruit quality during storage at 13 °C. Screening of effective concentrations from 0.01 to 0.16% was conducted for each essential oil. The results showed that, of the essential oil treatments tested, a kaffir lime oil coating of 0.01% could best maintain the quality of fruits, reducing both weight loss and browning of the peel and spinterns. However, essential oil concentrations exceeding 0.04% severely damaged the fruit pericarp, in which scores of spintern browning were higher than those of peel browning. These results suggest that kaffir lime oil can maintain the postharvest quality of ‘Rongrien’ rambutan fruit as a supplement in some edible coatings.


Author(s):  
Glauce Vasconcelos da Silva Pereira ◽  
Gleice Vasconcelos da Silva Pereira ◽  
Luã Caldas de Oliveira ◽  
Dilson Nazareno Pereira Cardoso ◽  
Verônica Calado ◽  
...  

2019 ◽  
Vol 48 (5) ◽  
pp. 95-101
Author(s):  
Ulzii-Orshikh Dorj ◽  
Uranbaigal Dejidbal ◽  
Hongseok Chae ◽  
Lkhagvadorj Batsambuu ◽  
Altanchimeg Badarch ◽  
...  

A new computer vision algorithm for citrus fruit quality classification based on the size of a single tree fruits was developed in this study. The image properties of area, perimeter, and diameter for the citrus fruits were measured by pixels. In order to estimate citrus fruit size in a realistic manner, the ratios of diameter, perimeter and area in pixel values in relation to the actual size of one fruit were determined. The total of 1860 citrus fruits were grouped based on diameter, perimeter, and area in pixels. The results of the grouping of citrus fruits by diameter, perimeter and area were compared with the results of the survey research into citrus fruit size as conducted by the Jeju Citrus Commission. Comparative results reveal that the image of the citrus fruit diameter in pixels demonstrate a more accurate size than the other two pixel values, i.e. perimeter and area.


2021 ◽  
Vol 10 (2) ◽  
pp. e30510212535
Author(s):  
Gabriel Kiaro Leite Nunes ◽  
Karinne Alice Santos de Araújo ◽  
Thais Ranielle Souza de Oliveira ◽  
Marcelina da Conceição Botelho Teixeira ◽  
Ieler Ferreira Ribeiro ◽  
...  

The COVID-19 pandemic brought about major changes in the lifestyle of the world population. Due to the lack of vaccines or a definitive treatment for disease, governments around the world have adopted social isolation and quarantine as methods to control the spread of the virus. Objective: Thus, the objective of this study was to discuss how social isolation and quarantine periods affected people's mental health and quality of life during the COVID-19 pandemic. Methods: An integrative literature review was carried out during the COVID-19 pandemic between March and September 2020, establishing the following guiding question: How did social isolation and quarantine affect the mental health and quality of life of the population in the COVID-19 pandemic? Results: The final sample consisted of nineteen (19) articles, two (2) addressed depression during the pandemic period, three (3) presented the pandemic and the relationship with sociodemographic aspects, five (5) analyzed mental health in the pandemic, four (4) reported the impact of COVID-19 on the population's style and quality of life and the last five (5) demonstrated the quality of human relationships and emotional aspects in the face of the pandemic. Conclusion: It was demonstrated that isolation and the quarantine period had a negative impact on the population's quality of life and long-term mental health.


2021 ◽  
Vol 0 (15) ◽  
pp. 0-0
Author(s):  
Hatice ÖĞÜTCÜ

With the increase in the world population every year, the need for plant and animal foods has increased. In order to meet these needs, the amount of fertilizers (with chemical content) used to increase productivity in agriculture has increased and has become a threat to the soil and the environment. In order to minimize the harms of chemical fertilizers and to preserve the fertility of the soil, new environmentally friendly applications have been researched. In this context, studies on "Plant Probiotics", which are one of the effective applications both in protecting the quality of the soil and increasing the yield in plant production, especially on local isolates and formulations to be prepared from them, have gained momentum. Plant probiotics are a group of microorganisms or microorganisms that can improve soil health, plant growth, and plant tolerance or immunity to various abiotic and biotic stresses, thanks to their potential role in enhanced nutrient acquisition and/or biocontrol activities by colonizing the root zone of plants, called the rhizosphere. As a result of inoculation of plants with strains of these bacteria, which have very different properties (nitrogen binding, phosphate solubilizing, biocontrol agent, stress resistance, phytohormone synthesis), it directly affects the growth and development of the roots and shoots of the plant, increasing the biomass, as well as contributing to the increase of the yield and quality of the product. In this context, the preparation and use of biofertilizer formulations of local plant probiotic bacteria, which will be obtained from their natural areas, has become very important in rational agricultural practices in recent years and intensive researches are carried out. With the use of the aforementioned plant probiotic formulations, environmentally friendly green production will be made by contributing to the production of both foodstuffs and feed raw materials in order to ensure the continuity of the world population. As a result, the protection of the ecosystem will be ensured by preventing environmental pollution, which is the problem of the whole world.


2010 ◽  
Vol 45 (10) ◽  
pp. 2062-2070 ◽  
Author(s):  
Cristina Rojas-Argudo ◽  
Miguel Ángel Del Río ◽  
Clara Montesinos-Herrero ◽  
Lluís Palou

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 486
Author(s):  
Waseem Ahmed ◽  
Rafia Azmat ◽  
Ebtihal Khojah ◽  
Rasheed Ahmed ◽  
Abdul Qayyum ◽  
...  

Today, the most significant challenge encountered by food manufacturers is degradation in the food quality during storage, which is countered by expensive packing, which causes enormous monetary and environmental costs. Edible packaging is a potential alternative for protecting food quality and improving shelf life by delaying microbial growth and providing moisture and gas barrier properties. For the first time, the current article reports the preparation of the new films from Ditriterpenoids and Secomeliacins isolated from Melia azedarach (Dharek) Azadirachta indica plants to protect the quality of fruits. After evaluating these films, their mechanical, specific respirational, coating crystal elongation, elastic, water vapor transmission rate (WVTR), film thickness, and nanoindentation test properties are applied to apple fruit for several storage periods: 0, 3, 6, 9 days. The fruits were evaluated for postharvest quality by screening several essential phytochemical, physiological responses under film coating and storage conditions. It was observed that prepared films were highly active during storage periods. Coated fruits showed improved quality due to the protection of the film, which lowered the transmission rate and enhanced the diffusion rate, followed by an increase in the shelf life. The coating crystals were higher in Film-5 and lower activity in untreated films. It was observed that the application of films through dipping was a simple technique at a laboratory scale, whereas extrusion and spraying were preferred on a commercial scale. The phytochemicals screening of treated fruits during the storage period showed that a maximum of eight important bioactive compounds were present in fruits after the treatment of films. It was resolved that new active films (1–5) were helpful in the effective maintenance of fruit quality and all essential compounds during storage periods. It was concluded that these films could be helpful for fruits growers and the processing industry to maintain fruit quality during the storage period as a new emerging technology.


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