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.
Keyword: 

Judul: Deteksi Gejala Chilling Injury Buah Belimbing (Averrhoa carambola L.) Yang Disimpan Pada Suhu Rendah Dengan NIR Spectroscopy
Abstrak: Cold storage or low temperature storage is an effective method to extend the self life and assuring quality product of horticulture such as star fruit. However, stored in low temperature may cause chilling injury which decreases the quality of star fruit. Chilling injury of star fruit has correlation with the change of pH content during storage. The change of pH content during storage my be determined nondestructively using near infrared (NIR) Spectroscopy. The objectives of this study were to determine quality of star fruit during storage, to build calibration model of NIR reflectance spectra to predict the pH content during storage at 5 oC temperature, and to determine chilling injury symptoms based on change of ion leakage slope during storage using NIR reflectance. Calibration were built using partial least squares (PLS). Result of analysis showed that the change of pH content could be predicted well by NIR reflectance using the calibration model of PLS for star fruit stored at 5 oC. The change of ion leakage slope based on change of pH content also could be determined using NIR reflectance for star fruits stored at 5 oC.
Keyword: 

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