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Ida Ayu Rina Pratiwi Pudja
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Pengaruh Lama Waktu Cekaman Anaerobik dan Konsentrasi Emulsi Lilin Lebah Sebagai Bahan Pelapis Terhadap Mutu dan Masa Simpan Buah Tomat Ni Putu Nita Lospiani; I Made Supartha Utama; Ida Ayu Rina Pratiwi Pudja
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 2 (2017): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2017.v05.i02.p01

Abstract

Tomato (Lycopersicon esculentum Mill) is classified as one of fruity vegetables which could grow both sub-tropical region and tropical region. Tomato fruits are naturally prone to damage during the postharvest period. Extending the shelf-life of the fruits could be done by using edible natural coating. Beeswax is one of the natural edible materials that could be applied for fruit coating which is safe to be consumed. Anaerobic stress given to the fruits aimed to create suitable anaerobic volatiles to reduce the deterioration rate during the postharvest period; therefore, prolong the shelf-life. In anaerobic condition, ethanol (ethyl alcohol) and acetaldehyde are volatile compounds which are naturally produced from fruits and vegetables. This research was aim to investigate the effect of two different factors of treatments, namely the length of time of anaerobic stresses and different concentration of beeswax emulsion (o/w), as a coating material, on the quality and storage life of tomato fruits.The result showed that the effect of the both factors of treatments were significantly interacted on the deterioration of quality and storage life of tomato fruits. The length of anaerobic stress of 36 hrs combining with different concentration (1.5 and 3.0%) of beeswax emulsion as a coating material slowed the deterioration of quality and increased the storage life of tomato fruits. However, if the length of stress of 72 hrs combined with concentration of beeswax emulsion of 3%, the intensity of fruit damage increased.
engaruh Perlakuan Uap Etanol terhadap Mutu dan Masa Simpan Bunga Kol (Brassica oleracea var. botrytis) pada Suhu Ruang Ni Ketut Sari Martini; I Made Supartha Utama; Ida Ayu Rina Pratiwi Pudja
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 2 (2017): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2017.v05.i02.p05

Abstract

The purpose of this research was to determine the effect of ethanol vapor and to identify the best treatment concentration to maintain quality and extend the shelf life of cauliflower. The study used a completely randomized design (CRD) with five levels of ethanol concentration: 0%, 5%, 10%, 15%, and 20%. Cauliflower florets used as controls were prepared without ethanol vapor treatment and stored at room temperature. The parameters measured included respiration rate, weight loss, color, vitamin C content, total dissolved solids, organoleptic properties (color, smell, and freshness), and intensity of damage. The results showed that the 10% ethanol treatment was the best concentration, as it reduced respiration rate and weight loss, maintained color, suppressed the decrease in vitamin C content, achieved the highest organoleptic scores for color, smell, and freshness, and reduced the intensity of damage in cauliflower.
Co-Authors I Made Supartha Utama I Made Supartha Utama Ni Ketut Sari Martini Ni Putu Nita Lospiani