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Journal : agritrop

Pengaruh Suhu Air dan Lama Waktu Perendaman Beberapa Jenis Sayuran Daun pada Proses Crisping SUPARTHA UTAMA, I MADE; AYU NOCIANITRI, KOMANG; RINA PRATIWI PUDJA, IDA AYU
AGRITROP Vol. 26, No. 3 September 2007
Publisher : AGRITROP

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Abstract

The primary cause of wilting in leafy vegetables after harvesting is high intensity of transpiration processthrough natural openings (stomata, hidatoda and lenticels). The mechanism of closing and opening of those naturalopenings is affected by the temperature of the environment. Under high external temperature, the stomata tendto open and vice versa. It is possible to diffuse water into the produce to give a vigorous effect by controlling theexternal temperature and moisture. The process is normally called crisping. The aim of this experiment was tostudy the effectiveness of crisping in order to give vigorous and freshness effects to four different leafy vegetables,namely lettuce, kangkung, leeks and chinese cabbage compared to those without crisping. The crisping processwas involving the immersion of produce in three different water temperatures (30, 40 and 50oC) combined withdifferent lengths of immersion times (1, 3, 5 and 7 minutes) and continued by immediate movement of produce tolow temperature (5±2oC) and stored for 12 hrs before placing and displaying at the show case under temperatureof 10±2oC. Produce treated as controls were provided without immersion in the warm water and stored at roomtemperature, and other was also placed at the show case. The result shows that the effectiveness of crisping dependedupon the physical structure or morphology of the respective vegetables. In general, the water temperatures of 30 and40oC and combined with the lengths of immersion time of 1-3 minutes were effective to improve the freshness andvigorousness of lettuce and leeks, while 7 minutes immersion was effective for kangkung and Chinese cabbage.
Co-Authors Ade Lanang Juliana Andri Frans Kalvin Gurning Ayu Cahyani Desak Ngakan Nyoman Mita Dewi Dinda Mar'atuzzahwa Dinda Mar’atuzzahwa Diori Beca Narmalia Malau DWI WIDANINGSIH Firnando Desnanta Tarigan Gede Arda Gede Oka Mandana GREG LUTHER GREGORY C. LUTHER Gusti Ngurah Alit Susanta Wirya Hardiano Tarigan I DEWA MADE PUTRA WIRATAMA I DEWA PUTU SINGARSA I Gede Manthika Utama I Gusti Ayu Prapti Pundari I Gusti Ketut Arya Arthawan I Gusti Ngurah Apriadi Aviantara I Gusti Ngurah Karisma Maheswara I Gusti Putu Umbara Yasa I Kadek Wirawan I KETUT PURNA YASA I KETUT SUMIARTHA I Made Sucipta I Made Sukewijaya I MADE YESTA SANTIATMA I Nyoman Cahyadi Purnama I NYOMAN DARMA YASA I PUTU BAWA ARIYANTA I Putu Gede Budisanjaya I Putu Sudiarta I Putu Surya Wirawan I WAYAN RUSMAN I Wayan Susila I Wayan Tika I Wayan Widia I. A. G. Bintang Madrini I. A. Rina Pratiwi Pudja I.A. Rina Partiwi P. Ida Bagus Putu Gunadnya Ida Bagus Wayan Gunam Indri Novia Santi Iriandi v Putra Janurianti, Ni Made Defy JOKO MARIYONO JOKO MARIYONO Kadek Arista Pradika Kadek Nindia Krisna Dewi KOMANG AYU NOCIANITRI Luciana Delavega Luh Putu Wrasiati M. Sudiana Mahendra Made Arya Nugeraha Inggas Made Nanda Saputra Muhammad Ryzad Akbar Ni Kadek Juliani NI KADEK NINA ARI SUCI Ni Ketut Sari Martini NI LUH WAHYU SUTARINI, NI LUH WAHYU Ni Luh Yulianti NI NENGAH DARMIATI Ni Nyoman Sulastri Ni Nyoman Sulastri Ni Putu Nita Lospiani Ni Wayan Sulasmi NI WAYAN SUNITI Nirma Yopita Sari Tarigan Novia Santi, Indri Nyoman Yoga Pradana Oki Adhi Prastya Pande Ketut Diah Kencana Qurratu Zahrah Trinilam Rina Pratiwi Pudja I. A Sumiyati Sumiyati Teresia Dimu Yohanes Setiyo