October 2019 Attachment : 2 (two) exp

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Number :

007/B/BC.ICEFS/X/2019

Makassar, 10

^th

October 2019 Attachment : 2 (two) exp

Subject :

INVITATION

Dear Participants, (List Attached)

We invite you to participate in the 1

^st International Conference on Political Ecology of Food Security

2019 which is organized by Study Program of Agribusiness, Departement of Socio-Economic of Agriculture, Faculty of Agriculture Hasanuddin University that will be held on

Day/Date : Monday/21

^st

Oktober 2019 Time : 08.30 - end

Place : The Rinra Hotel

Jl. Metro Tanjung Bunga No. 2

Kelurahan Pannambungan, Kecamatan Mariso 90112, Tlp. +62-411-366 3222

It is a great honour for us if you are coming and join the conference and if you need to get more information about this event please do not hasitate to contact our contact person in work hour.

Chair of Conference Secretary

Dr. Muh. Hatta Jamil, SP., M.Si Rasyidah Bakri, SP, M.Sc

19671223 199512 1 001 19810222 200501 2 001

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Attachment 2. List of Papers and Authors Universitas Tadulako

Judul Penulis Email

Physicochemical properties of phosphate butyrate arenga

starches from dual modifications

^{A Rahim}

1*, M A F Nugroho², G S Hutomo¹, S

Kadir¹, S Laude³, Muhardi [email protected]

Effect of Atrazine and Green Fertilizer (Tithonia Diversifolia) on

Weed Growth and Corn Productivity

^{S Laude}

1*, Mahfudz¹, Fathurrahman¹, S

Samuddin¹ and A Rahim [email protected] .id

A Decrease in the Activity of Hg

²⁺

Due to the Provision of Humic Acid and Fulvic Acid on Entisols Polluted by Heavy Metals of Mercury

Isrun Isrun*

¹

, Muhammad Basir Cyio

¹

,

Imam Wahyudi

¹

, Uswah Hasanah

[email protected] m

Industrialization and Regional Income Inequality: The Case of Morowali and Banggai Regency in Indonesia

Rustam Abdul Rauf, Suparman, Husnah, Muhammad Darma Halwi, Muh Fardhal

Pratama and Arung Gihna Mayapada [email protected] m

The Use of Litterfall From Various Land Agroecosystems To Increase The Fertility Of The Land Of Community Cocoa

Plantations Around The Lore Lindu National Park Area Muhardi dan Abdul Rahim

[email protected]

Application Of Bokashi Goat Manure and Organic Liquid Fertilizer

to Improve The Growth and Yield Of Lembah Palu Shallot Variety M. Ansar, Bahrudin and A.R. Thaha

[email protected]

First Report of Enterobacter cloacae in Shallot (Allium cepa L.

Aggregatum group) in Indonesia

Asrul

Application of local seaweed extract to increase the growth and yield eggplant (Solanum melongena L.,)

Ramal Yusuf, Mahfuds, Muhardi, Abdul Syukur, Hidayati Ma’ruf, Burhanuddin Latarang, Dewi Kartika, and Paul

Kristiansen [email protected]

m

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Attachment 2. International Conference on Political Ecology of Food Security Time Schedule

TIME ACTIVITIES ORGANIZER

07.30 – 08.30 Registration Organizing Commitee

08.30 – 08.35 Opening by MC Master of Ceremony (Amma and Dimas)

08.35 – 08.40 Praying Rio Akbar

08.40 – 08.50 Indonesian Anthem Song : Indonesia Raya,

March of Hasanuddin University, and Traditional Songs of South Sulawesi

MISEKTA Choir and audiences MISEKTA Choir

MISEKTA Choir

08.50- 09.00 South Sulawesi Traditional Dance Traditional Dancer Group of MISEKTA

09.00 – 09.30 Welcome Speech 1. Dean of Faculty of Agriculture Hasanuddin University

2. Rector of Hasanuddin University 3. Governor of South Sulawesi Signing MoU Rectors from 7 universities

09.30 – 10.00 Coffee Break Organizing Commitee

10.00 – 11.00 Conference Session I Moderator : Prof.Yunus Musa Speakers :

1. Indonesian Ministry of

Agriculture

2. Dr.Peter Mc.Mahon

(University of Sidney, Australia) : Determinants of Off-Warm Income Among Cocoa Smallholders in West Sulawesi

3. Prof.Dr.Ir.M.Saleh S.Ali,

M.Sc (Universitas Hasanuddin) : Political Ecology of Food Consumption and Production in Mountain and Small Island Ecological Zone : Power and Interest Analysis of Stakeholder 11.00 – 12.00 Conference Session II Moderator : Muh.Arsyad, PhD

Speakers :

1. Prof.Yoshio

Kawamura (Ryukoku University, Japan) : Agricultural and Rural Development of Food Security in Asia : Evidance from Japan and USA

2. Dr.Arif Satria, SP, M.Si

(IPB) : Political Ecology

3. Prof.Dr.Mohd.Nizam A.B

Rahman (The National University of Malaysia) : Segenting Kra Canal : “What We Should Know”

12.00 – 13.00 Break/Lunch Time Organizing Commitee

13.00 – 17.00 Oral Presentation Moderator Rg. Maccora 1 : Ifayanti Ridwan, SP,.MP,.PhD Moderator Rg.Kaluku 1 : Dr. Eng. Ir. Ilham Bakri, ST., M.Sc.

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IPM

Moderator Rg.Kaluku 2 : Hary Iswoyo, SP,.M.Sc., Ph.D Moderator Rg.Kaluku 3 : Andi Dirpan, STP., M.Si., Ph.D 18.30 - selesai Dinner with Governor of South

Sulawesi Province Organizing Commitee

INTERNATIONAL CONFERENCE FIELDTRIP TIME SCHEDULE

Thursday /22

^nd

October 2019, in Tourism Place of Rammang Rammang Karst, Maros

TIME ACTIVITIES ORGANIZER

06.00 – 07.00 Tour Preparing (Assembly point at the lobbi of The

Rinra Hotel) PIC Fieldtrip

07.00 – 09.00 Travelling Time to The Location PIC Fieldtrip

08.30 – 12.00

Field Trip

PIC Fieldtrip

12.00 – 13.00 Break Time PIC Fieldtrip

13.00 – 14.30 Back to The Rinra Hotel PIC Fieldtrip

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Physicochemical properties of phosphate butyrate arenga starches from dual modifications

A Rahim¹, M A F Nugroho², G S Hutomo¹, S Kadir¹, S Laude³ and Muhardi³

1 Food Science and Technology, Agriculture Faculty, Tadulako University, Palu.

Jalan Soekarno Hatta Km. 9 No. 32 Palu, Central Sulawesi94118 Indonesia.

2Graduate of Agrotechnology, Agriculture Faculty, Tadulako University, Palu.

3 Horticulture Science, Agriculture Faculty, Tadulako University, Palu.

Email: [email protected]

Abstract. Native arenga starch has infirmity physicochemical properties so that its use is limited to functional food. Dual modification is a starch processing to improve physicochemical properties of starch. The objective is to determine the optimum concentration of sodium trimetaphosphate (STMP) based on the physicochemical properties of the phosphate butyrate arenga starch (PBAS) from dual modification of butyrylation and phosphorylation. The method of making PBAS is using butyric anhydride 5% (w/v) and STMP concentration variation consisting of 2%, 4%, 6%, 8%, 10% and 12%

(w/w) of the starch weight repeated three times and native arenga starch as a comparison.

Physicochemical properties analyzed were percent butyryl, degree of substitution (DS), phosphate content, binding of butyrate phosphate with fourier transform infrared (FTIR), water, starch, amylopectin, amylose and ash contents. The results showed that the optimal STMP concentration range of 4-6% based on percent butyryl, DS and phosphate content that produce PBAS suitable for functional food ingredients. Binding of the functional group of PBAS formed a new peak in the FTIR spectra at wave number 1365.60 cm^-1 which indicates the presence of phosphate (P=O) groups of STMP on starch molecules. The water content of PBAS decreased with increasing STMP concentrations. The amylose, amylopectin and ash contents of PBAS were changed after the process of butyrylation and phosphorylation. PBAS is potential as a functional food ingredient due to its butyrate and phosphate contents.

Keywords: phosphate butyrate arenga starches, dual modification, sodium trimetaphosphate.

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International Conference on Political Ecology of Food Security, The Rinra Hotel Makassar

October 21, 2019 Makassar - Indonesia

A Rahim, M A F Nugroho, G S Hutomo, S Kadir, S Laude and Muhardi

Tadulako University

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Dual Modifications:

PBAS

Phosphorylation (Use STMP)

Butyrate Arenga Starch (BAS) Native Arenga

Starch (NAS) Butyrylizatiaon

Physicochemical

characteristics: heat-resistant, acidic-resistant and retrograde decrease

Arenga Plant (Arenga pinnata)

Phosphate Butyrate Arenga Starch (PBAS)

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pH Suspension 10 for 40 min

Reaction stopped pH 4,5

Sedimentation and washing with distilated water two times

and etanol one times Drying at 50

^o

C, 12 hours PBAS: Food Functional

HCl 0,5 N

Distilated water 112,5 mL

stirrer (60 minutes, room temperature)

NaOH 3%

Butyric anhydride 5 % (v/w)

Arenga Starch (50 g)

Figure 1. Flow chart synthesis of PBAS

% butyryl, DS, P, FTIR, Water,

Amylose &

Amylopectin and Ash content

pH Suspension 10,5 for 30 min

NaOH 3%

STMP: 2,4,6,8, 10, 12 % (v/w)

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Figure 2. % Butyryl and DS of PBAS

1.582a

1.935abc

2.472c

2.050abc 2.284bc

1.744ab

0.037a 0.045abc

0.058c

0.048abc 0.053bc

0.040ab

0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20

0.50 1.00 1.50 2.00 2.50 3.00 3.50

2 4 6 8 10 12

DS

Buty ry l ( % )

STMP Concentrations (%)

Butyryl DS

0.0028a

0.0036c

0.0035bc 0.0033ab 0.0032ab 0.0031a

0.0000 0.0020 0.0040 0.0060 0.0080 0.0100

2 4 6 8 10 12

Phosphate (%)

STMP Concentrations (%)

Figure 3. Phosphate Content of PBAS

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Figure 4. FTIR spectra profile of native arenga starch (a) and phosphate butyrate arenga starch with different STMP concentrations: STMP 2% (b), STMP 4% (c), STMP 6% (d), STMP 8% (e), STMP 10% (f) and STMP 12% (g).

P

There is no P

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12.72c

10.49b

9.40ab 9.68ab 9.90ab

8.22a

8.99ab

6.00 7.00 8.00 9.00 10.00 11.00 12.00 13.00 14.00

Arenga Starch

2 4 6 8 10 12

W at er con tent (%)

STMP Concentrations (%)

Figure 5. Water content of PBAS at different STMP concentrations

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Table 1. The amylose, amylopectin and ash contents of native arenga starch and PBAS

Treatments Amylose (%) Amylopectin (%) Ash (%)

Native starch 29.45 ± 0.418 ^c 70.55 ± 0.418 ^c 0.29 ± 0.016 âb STMP 2% 26.81 ± 0.743 ^b 73.19 ± 0.743 ^d 0.35 ± 0.036 ^b STMP 4% 33.25 ± 0.285 ê 66.75 ± 0.285 â 0.35 ± 0.049 ^b