scholarly journals Effect of modified atmosphere storage on the shelf life and quality of black pepper and turmeric

1970 ◽  
pp. 20-26
Author(s):  
T J Zachariah, E Jayashree, K N Shiva
Keyword(s):  
Essential Oil ◽  
Modified Atmosphere Packaging ◽  
Dry Weight ◽  
Storage Conditions ◽  
Black Pepper ◽  
Modified Atmosphere ◽  
Ambient Storage ◽  
Modified Atmosphere Storage ◽  
Atmosphere Storage ◽  
Control Samples

Modified atmosphere packaging and storage of black pepper (var. Panniyur I) and turmeric (var. Prathiba) were studied for a period of 16 months under ambient storage conditions. Whole dry samples of black pepper and turmeric were packaged in three layered metalized polyester covers (12 μ polyester + 12 μ metalized polyester + 80 μ LDPE) under three modified storage atmospheres viz. 100% vacuum, 100% N2, 90% N2 + 10% CO2 and the control samples were stored in small size jute gunny bags. Results indicated that maximum retention of quality in terms of its essential oil and oleoresin contents of black pepper and turmeric was obtained when stored under nitrogen packaging (100% N2), followed by vacuum packaged (100% vacuum) and modified atmosphere storage of 90% N2 + 10% CO2. The essential oil content of stored black pepper reduced from 2.42% to 2.22% (dry weight basis, dwb) in all the three modified atmosphere storage with a loss of 8.26% while control recorded a loss of 16.53% during storage. The oleoresin content decreased from 7.79% to 7.44%, 7.38% and 7.32% in case of black pepper stored in 100% N2 packaged, 100% vacuum packaged and 90% N2 + 10% CO2 packaged storage atmospheres. The quality loss for turmeric in terms of essential oil, oleoresin and curcumin content at the end of storage, when packaged in 100% N2 atmosphere were 36.60%, 16.12% and 9.48%, respectively while the corresponding reduction in control samples were 40.49%, 20.27% and 19.39%.

scholarly journals Analisis Variasi Sparger pada Instalasi Modified Atmosphere Storage untuk Menurunkan Kadar O2

2017 ◽  
Vol 2 (1) ◽  
pp. 17
Author(s):  
I Gede Eka Lesmana ◽  
Agri Suwandi ◽  
Arnold Raynold
Keyword(s):  
Kinetic Energy ◽  
Modified Atmosphere Packaging ◽  
Least Square ◽  
Turbulence Kinetic Energy ◽  
Modified Atmosphere ◽  
Modified Atmosphere Storage ◽  
Atmosphere Storage

Metode pengawetan makanan dengan memodifikasi komposisi udara khususnya untuk kandungan oksigen dan karbondioksida  di ruang simpan atau disebut juga dengan Modified Atmosphere Packaging (MAS)  telah diterapkan untuk memperpanjang umur simpan dari buah-buhan dan sayuran. Modifikasi komposisi udara dalam ruang simpan MAS menggunakan injector tipe sparger dengan gas karbon dioksida. Kinerja sparger dinilai dari peningkatan jumlah kandungan gas oksigen dalam ruang simpan dan tingkat homogenitas di dalam sparger. Tujuan penelitian ini adalah melakukan pemilihan sparger berdasarkan variasi dimensi sudut keluar terhadap kinerja sparger dengan menggunakan simulasi ANSYS dan uji eksperimental. Lima varian sparger diuji tingkat homogenitas dan kadar oksigen yang terkandung dalam ruang simpan. Hasil simulasi dan eksperimetal untuk kelima sparger menunjukkan sparger varian 3 dengan material PVC dari gabungan dua reducer (diameter 44,4 mm dan 31,7 mm) dan dimensi sudut keluar 26,6° memiliki nilai Turbulance Kinetic Energy (TKE) rata-rata tertinggi yaitu 792,66 J/kg dan kadar oksigen dalam ruang simpan terendah yaitu  6,4%.  Model hubungan antara kadar gas karbon dioksida dengan oksigen dibuat dengan menerapkan metode least square menunjukkan tingkat signifikan sebesar 74,17%. Luaran dari penelitian ini adalah sparger varian 3 terpilih sebagai sparger yang akan digunakan dalam MAS karena mampu menurunkan kadar oksigen di bawah 10%.         Kata kunci: sparger, Turbulence Kinetic Energy (TKE), Modified Atmosphere Storage (MAS), least square 

scholarly journals ​Effect of Modified Atmosphere Storage Conditions on Seed Quality and Longevity of Kabuli Chickpea Varieties

2021 ◽  
Author(s):  
Pavan Shinde ◽  
Ravi Hunje
Keyword(s):  
Seed Quality ◽  
Modified Atmosphere Packaging ◽  
Residual Effect ◽  
Seed Storage ◽  
Modified Atmosphere ◽  
Ambient Conditions ◽  
Alternative Method ◽  
Agricultural Sciences ◽  
Modified Atmosphere Storage ◽  
Atmosphere Storage

Background: Chickpea is an important pulse crop. The area, production and productivity of Kabuli chickpea are very low as compared to Desi type chickpea. While, worldwide chickpea production is predominated by Desi type (80%) compared to Kabuli type (20%). One of constraints limiting the Kabuli chickpea seed production is the fast seed deterioration process as, they possesses thin and fragile seed coat which makes it more susceptible to infestation of pulse beetle and storage fungi. In addition, the day by day increase in usage of chemical pesticides and increase in health awareness among the people and demand towards organic based products necessitate a new alternative method of seed storage than the routinely used storage methods. Modified atmosphere storage is an alternative method to avoid chemical fumigants, which are said to cause residual effect on seed material and development of resistance by storage pest against insecticides. Methods: The present investigation on modified atmosphere packaging (MAP) was carried out at the Department of Processing and Food Engineering, College of Agricultural Engineering, University of Agricultural Sciences, Raichur during March 2017. Further, its storage and seed quality assessment were conducted at Seed Quality and Research Laboratory of National Seed Project (Crops), Seed Unit, University of Agricultural Sciences, Dharwad during March 2017 to May 2018. Result: The results revealed that the Kabuli chickpea seeds stored in the gaseous atmosphere with the combination of CO2 (80%) + N2 (20%) + O2 (0%) [C2] have maintained the maximum germination (92%) followed by Vaccum Packaging [C5] by using 700 gauge polyethylene bag for 14 months under ambient conditions above the Indian Minimum Seed Certification Standards.

scholarly journals Development of a Controlled-Ventilation Box for Modified-Atmosphere Storage of Fresh Produce

Foods ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2965
Author(s):  
Nandita Keshri ◽  
Ingo Truppel ◽  
Manfred Linke ◽  
Martin Geyer ◽  
Cornelia Weltzien ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Supply Chain ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Fresh Produce ◽  
Storage Conditions ◽  
Modified Atmosphere ◽  
Modified Atmosphere Storage ◽  
Atmosphere Storage ◽  
Wall Openings

Adjusting beneficial gas concentrations in real time in response to changing storage conditions is important for fresh produce, especially throughout the supply chain when temperature abuse occurs frequently. In this study, a controlled-ventilated box for bulk transportation of fresh produce was demonstrated and tested under variable temperatures. The presented system comprised a rigid container with a miniature blower installed in the opening of its wall for facilitating the gas exchange and an additional wall opening with a metal tube protruding into the inner container’s space. The in-package atmosphere was formed by the balance between the respiratory activity of the produce and the influx of fresh air through the wall openings, regulated by switching the blower ON or OFF. The mass transfer coefficient for metal tubes of different dimensions was measured under modified atmosphere featuring 15% CO2 and 5% O2 at 10 °C. The addition of an air blower increased the mass transfer coefficient by at least 100 times. A further storage trial with cherries was successfully performed at 10 °C and 20 °C. The demonstrated trial featured some significant inputs to increase the knowledge about better storage of fresh produce throughout the supply chain and storage.

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