Judul: Pengurangan Gejala Chilling Injury Buah Belimbing (Averrhoa carambola L.) dengan Perlakuan Aloe Vera Coating
Abstrak: Temperature is one of the major factors affecting the metabolism of postharvest products physiology. Agricultural products cooled at a temperature lower than the optimum temperature will be damaged, known as chilling injury. In addition to storing at low temperatures, one way to maintain the quality of agricultural products is coating. Aloe vera gel is one material that can be used as a coating on the surface of fruits. Star fruit (Averrhoa carambola L.) has shape like a star. Star fruit marketing prospects in this country is estimated to become better and better. This is caused by population growth and the increasing number of consumers realizing the importance of nutrition from fruits. Quality of fruits can not be repaired, but can be maintained. Postharvest process of star fruit should be given appropriate handling attention, because the quality of the star fruit depending on harvest time and the postharvest process. The purpose of this research to study the application of aloe vera coating with 100% concentration on the star fruit stored at low temperatures to reduce of chilling injury symptoms. The results showed that star fruit with aloe vera coating treatment 100% stored at a temperature of 50C has a resistance to cold temperatures, showed by the chilling injury symptoms being longer better than the untreated fruit (control). Aloe vera treatment of star fruit effectively reduces the increase of ion leakage, and can also reduce weight loss, while does not give effect to the reduction of respiration.
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Judul: Penentuan Gejala Chilling Injury Buah Belimbing (Averrhoa Carambola L.) yang disimpan pada Suhu Rendah
Abstrak: In this study, the changes in quality of star fruits stored in low temperature was examined and the chilling induced of star fruits during storage period was examined by the changes in the rate of ion leakage. The quality of star fruits during storage was examined through the changes in respiration rate, firmness, total soluble solid, weight loss, ion leakage, and visual appearance daily. The sample of star fruits were stored at three different temperatures, i.e. 5 and 10 oC and room temperature. Ion leakage was determined by calculating the slope of percentage of total ion leakage with time. It was resulted that the peak of the rate of ion leakage for fruits stored at 5 ºC was found after 1 day storage. The increase in the rate of ion leakage indicates the chilling induced of cell membrane. This chilling injury caused the fruits has the quality lower than that fruits stored at 10ºC after period of time which was indicated by the lower total soluble solid.
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Judul: Heisenberg Uncertainty of Double SlitSystem Based on Budiyono-Rohrlich Quantum Statistics Model
Abstrak: Interpretasi kuantum dikembangkan untuk memaknai secara fisis dengan jelas bagaimana suatu dinamika pada sistem mikroskopis yang dijelaskan dengan teori-teori kuantum, seperti interpretasi Copenhagen yang mendeskripsikan sistem kuantum sebagai suatu keadaan yang dideskripsikan dengan fungsi gelombang yang berisikan bagaimana peluang keadaan suatu sistem. Interpretasi kuantum juga bisa dibawa dari suatu sistem klasik seperti pada model statistika-kuantum Budiyono-Rohrlich yang menjelaskan bagaimana dinamika kuantum berhubungan dengan sistem klasik dengan penerapan statistika pada model Hamiltonian sistem. Fungsi distribusi dapat mendeskripsikan bagaimana suatu sistem terdistribusi pada suatu ruang pada pandangan klasik namun untuk sistem kuantum fungsi distribusi adalah peluang dari sistem tersebut. Sistem klasik dan kuantum juga dipisahkan berdasarkan pada ketidakpastian Heisenberg tentang suatu pengukuran yang tidak bisa secara sekaligus dilakukan bersamaan. Model statistika-kuantum Budiyono-Rohrlich membawa suatu sistem klasik menjadi sistem kuantum dengan dua aksioma yaitu hukum kekekalan energi rata rata dan konservasi rapat probabilitas. Sistem klasik yang didefinisikan akan diatur dengan menambahkan dua variable matematis berupa ontic extensions dan epistemic restrictions dimana kedua variabel ini yang akan menghubungkan bagaimana sistem klasik bisa diubah menjadi sebuah sistem kuantum. Dua variabel matematis tadi membuat sebuah sistem bisa diperlihatkan ketidakpastiannya lewat perhitungan simpangan rata-rata dan hasilnya akan selalu memenuhi ketidakpastian Heisenberg
Keyword: fungsi distribusi, model Budiyono-Rohrlich, ontic extension, epistemic restriction, ketidakpastian Heisenberg