จำนวน Repository ( 2 )

การผลิตไข่เค็มแดงชนิดเค็มน้อยด้วยเกลือและมอลโตเด็กซ์ตริน
การผลิตไข่เค็มแดงชนิดเค็มน้อยด้วยเกลือและมอลโตเด็กซ์ตริน

This study demonstrates a new concept of salted yolks processing using only the yolk directly with the egg white portion being further utilized. This salting process accelerated the salting time from 4 weeks for whole egg pickling to only 5 days. The results showed that the increasing of amount of salt and maltodextrin in the salt solution (20 and 26% of salt 10 and 20% of maltodextrin) and salting time (0-5 days) resulting in a decrease in the moisture content of the yolk as well as the increase in the amount of salt and fat content in salted yolk. These caused a lower in brightness (L*) and a yellow index (b*) while a higher red index (p<0.05) of salted yolk. Moreover salted yolk has higher hardness cohesiveness gumminess and chewiness while showed lower adhesiveness and springiness which the increasing of salt solution concentration and salting time (p<0.05). Pickling of egg yolks directly in a solution of 20% of sodium chloride mixed with 20% of maltodextrin resulted in the lowest salt content. The comparison of the chemical and physical quality for salted egg yolks this new separted yolk salting generated salted yolks of similar quality to those of commercial salted egg yolks which was produced using the traditional egg-shell method but lower in salt content (p<0.05). Thus this novel salting process can be a guideline for the development of an efficient low-salt egg yolk production method.

2565
กรรมวิธีการปรับกรดของผักและสลักด้วยเครื่องปรับสภาพความเป็นกรดภายใต้การควบคุมอุณหภูมิและความดันบรรยากาศ
กรรมวิธีการปรับกรดของผักและสลักด้วยเครื่องปรับสภาพความเป็นกรดภายใต้การควบคุมอุณหภูมิและความดันบรรยากาศ

. This research aimed to study the acidification processes of carving vegetable using acid conditioning machine under emperature and pressure control which was developed in this study. Four acidification procedures were done at normal atmospheric pressure (method 1) under vacuum pressure for 10 (method 2) and 20 min (method 3) and vacuum pressure alternating with normal atmospheric pressure for each of 1 hour. There were two main parts of acid conditioning machine including the temperature controller inside the pickle tank and heat conductor tank and the pressure controller inside the pickle tank. The pickling temperature was stabled at 40oC under the pressure of 0.5 Bar. PLC (Programmable Logic Controller) program was used to write the ladder for controlling all processes and display through SCADA system. The results showed that the acidification method by soaking the carved-rose carrot under vacuum pressure alternating with normal atmospheric pressure showed the shortest time to equilibrium by 7 hours. Then the carved-rose carrot was packed in the glass jar followed by sterilized in boiling water for 15 minutes and stored at room temperature for 7 days. Total bacteria count Escherichia coli and Yeast-mold were not exceeded than the standard limit. Staphylococcus aureus was not detected throughout the storage periods

2564