Tomatoes are rich in nutrients and unique in flavor, and are very popular among people. In addition to the requirements of flavor, nutrition and product appearance, the excellent tomato varieties also have higher requirements on the storage and transportability and hardness of the fruit. Tomatoes are typical climacteric fruits, and their nutrients and hardness change during storage. Therefore, the changes of tomato fruit during storage were investigated, and the storability of tomato varieties was identified. The changes of storage characteristics of tomato fruits after harvest were studied to provide a scientific basis for the selection of tomato varieties.
1 instruments and probes
Universal TA Multi-Purpose Texture Analyzer P/5 Cylindrical Probe
2 test methods and steps
The tomato was tested in the TPA mode by placing the middle part of the fruit ventricle perpendicular to the probe.
Speed ​​before test: 0.5mm/s
Test speed: 0.5mm/s
Speed ​​after test: 0.5mm/s
Trigger force: 8gf
Target mode: distance 10mm
3 test results and storage and transportation
(1) Fruit hardness : reflects the storage stability of the fruit to a certain extent
(2) Cohesiveness : reflects the size of the binding force between cells. The higher the cohesiveness, the finer the pulp is when chewed, and the better the taste.
(3) Viscoelasticity : reflects the distance the sample protrudes. Viscoelasticity also reflects the ability of the fruit to resist extrusion to a certain extent.
(4) Glue : It reflects the crushing ability of the fruit to a certain extent, and the transportability is good when the gel property is good.
(5) Chewing property : reflecting the firmness of the fruit. The higher the firmness, the better the crush resistance and the better the transportability.
It is full range of valve spindle for the following type :
AAA) YANMAR DIESEL ENGINE
K(D)L, KFL-T, 6MAL-H/T/HT/DT, S165-T/ST/EN,
S185-ST/UT/ET, M200L-UN/SN/EN/M220L-UN/SN/EN / N 330
BBB) DAIHATSU DIESEL ENGINE
PS22/26/ DS18(A)/ DS(B)22/
DL20/22/28/ DK20 / DK 28
CCC) NIIGATA DIESEL ENGINE
6L(M)25BX/6M28AFTE/BX/6M31X/EZ/EX/ 31AFTE /34AGT
DDD) AKASAKA
AH30/AH38/ AH40/D/F/ A31/34/37/41/ DM28/30/33/36/38/40(A)K/ DM46/ UEC37H-HB/ UEC 37/88H
UEC 37LA/ UEC45LA/ UEC52LA/ UEC52HA/ UEC60HA/ UEC60LS/ UEC45HA/115 ALL UET TYPE
EEE) MITSUBISHI (KOBE AND AKASAKA )
45/75C/ 45/80D/ 52/90D/ 52/105D.E/
UEC37H-IIB/ UET37/88HA/UEC45HA.LA/ UEC52HA.LA/ S6B/
ETC
FFF) HANSHIN
6LU(D)26/ 6LU(N)28A/ 6LU(D)32/6LU(D)35/ 6LU(S)38/ 40 / 6LU40/ 6LU46A/ 6LU50A/
6EL30/ EL(S)32 /6EL(S)35/ 6EL38/ 6EL40/ 6EL(S)44/50A/
GGG) MAN B&W
S35MC/L35MCE/L50MCE/ L60MCE/ 40/54A
HHH) MITSUBISHI PURIFIER
SJ700~SJ1800/SJ 2000
III)SULZER
RND 68 RND 76 RD 44
JJJ) MAKITA
GSLH – 633 637 KSLH -633 637
Kkk) PIELSTICK
PC 2-5 PC 2-6
Valve Spindle,Spindle Butterfly Valve,Marine Valve Spindle,Valve Extension Spindle
ZhouShan HeCheng Machinery Co., LTD. , https://www.hcmarineparts.com