Departamento de Investigación y DesarrolloCarlos Castro V.

Barney Jacome S.Marcelo Quintana G.

Jhonny Guzman M.Carlos Jr. Castro V.

Danilo Vera C. June 2018

Advantages of Aged Rice: Main Characteristics, Benefits and Experiencie in Five Countries With

More Than 30 Rice Varieties

JATUN HUAYRA MEPHISTO MCM

What is aged rice?

Rice grain with long term storage that had undergoes changes in its physical and chemical properties causing impact on rice cooking and eating quality. It is an expontaneous and natural phenomenom.

Aged rice synonymous

- Ecuador, Costa Rica, Colombia = Procesado, envejecido- Perú = Añejado, homogenizado- Bolivia = Reposado

Aged rice: Main characteristics

Higher capacity to absorb water

Consistency/Grainy after cooking

Greater palatability

Flavor

Benefits of consuming aged rice

Improve digestion: due to starch transformation

Facilitate the cooking: higher volume expansion and water absorption upon cooking.

More pleasant to eat: non sticky after cooking

Improve flavor and aroma

Country Rice type Processingtime Observations

Ecuador Local: 13 1 – 2 years Every year the consumption of aged rice is increasing

Peru Local: 8 1 - years Problems of aging rice with some varieties (de la selva)

Costa Rica

Local: 9USA: 1

Approx. 4 months

Consumption of pre- aging rice. Mixture of local varieties (80%) with USA varieties (20%) to gain looseness

Bolivia Local: 6 2 – 3 years Aging rice long term storage due to market request

Storing time in traditional aging Rice: Countries experience

Main concerns with traditional rice aging method

Time consumed ( From 1 to- 3 years)

Use of space for storage (use of rough rice)

Maintenance risk (pest attack, over heating, natural disaster ( flooding, changes in temperature)

Higher costs/ Investment

Lower return rate/low benefits

EVA-14700 Aged Machine6.

7m

2,1m

3D design aged rice machine line

Traditional aging rice vs induced aging of rice

Characteristic Natural Aging Induced agingStoring/processing time 1 – 3 years ~32 hours

Grain Maintenance risk High risk Low risk

Amylose content Transform to a type of glucosa

Transform to a type of glucosa

Grain breakdown Low risk Low risk

Color change whiteness loss (2 points)

whiteness loss (2 points)

Description EVA 7000 EVA 14800

Installed Power/hour 65 kW/86.9 HP 110 kW/147.5 HP

Process power/h. 40 kW 75 kW

Dimension (L – W - H) 4.1 x 2.1 x 4.2 (m) 4.1 x 2.1 x 6.7 (m)

Installation Voltage 220-380-440V (3ph) 220-380-440V (3ph)Frequency 50-60 Hz 50-60 Hz

Weight without load 6900 kg 12500 kg

Weight with load ~13900 kg ~27200 kg

Resistance # 18 units 30 units

Technical Information of EVA-7000 and EVA-14800

maquina con características de funcionamiento

Processing characteristics

Action EVA 7000 EVA 14700Process capacity/batch ~7000 kg (154 qq) ~14800 kg (326 qq)Operational hand labor 1 operator 1 operatorRice type Husked rice Husked rice

Loading time 45 min 45 min

Process time 18 - 32 hours 18 - 32 hours

Cooling time* 6 – 8 hours 6 – 8 hours

Unloading time 45 min 45 minHumidity lose/process ± 1% ± 1%* To unloading, the grain temperature do not should exceed the 10oC respect the

external temperature

maquina con características de funcionamiento

EVA 7000 and EVA14800 power consumption characteristics

Action EVA 7000 EVA 14700

Power used/ process* 600 kW 1130 kW

Total power used for Fresh rice*

3.87 kW/qq($ 0,43 /qq)

3.48 kW/qq($ 0.38 /qq)

Total power used for Pre-stored rice (4 – 6 months)**

2.79 kW/qq($ 0.31/qq)

2.51 kW/qq($ 0.28/qq)

* Based on real 25 hour process. Data from a processing plant in Peru

** Based on real 18 hour process. Data from a processing plant in Perú

Centralized control using Ethernet system

Results of Biochemical analysis of fresh rice, Induced aged rice and natural aged rice

Resume of Biochemical analysis content

maquina con características de funcionamiento

ResultadosContent Fresh rice Induced aged rice

Natural aged rice

Starch 72.4 70.8 70.33

Sugar < 1.0 % < 1.0 % < 1.0 %

Carbohydrate 78.65 % 77.60 % 76.44 %

Protein 7.58 % 8.01 % 9.02 %

Ash 0.27 % 0.30 % 0.33 %

lipids 1.30 % 2.03 % 1.99 %

Sodium 5.71 mg/kg 3.65 mg/kg 6.18 mg/kg

Iron 2.50 mg/kg 2.00 mg/kg 1.54 mg/kg

Cadmium < 0.1 mg/100g < 0.1 mg/100g < 0.1 mg/100g

Experiences with Induhorst aged rice machine in different countries

Production Line in Lambayeque - Peru

Photos courtesy: Barney Jacome S.

Photos courtesy: Carlos Castro. Photos courtesy: Barney Jacome S.

Production Line Guayas Province- Ecuador

Ecuador:

• Donato

• INIAP 14

• INIAP 11

• Lira

• F-50

• FL-09

• FL-11

Tests using several rice genotypes

Peru:

• NIR-48

• Tinajones

• Esperanza

• Capirona

• Ferón

• Mallares

Bolivia:• MAS 18• Grano de oro

Costa Rica:• USA-2• Palmar-18

Achievements obtained

Increase of processing capacity

Implementation of Wireless remote control

Adjustment of the machine to the differents specifications of the demandent.

Reduction of processing costs

Maintenance of the quality of the product

DSC05123.JPG

Aged rice Fresh riceAged riceFresh rice

Morphological comparison between fresh rice and aged rice using Induhorst technology

Grainy rice test